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1231002301 is a prime number
BaseRepresentation
bin100100101011111…
…1001101010111101
310011210100101200211
41021113321222331
510010114033201
6322052352421
742335226664
oct11127715275
93153311624
101231002301
11581961281
122a4315711
1316805a739
14b96bdddb
1573111651
hex495f9abd

1231002301 has 2 divisors, whose sum is σ = 1231002302. Its totient is φ = 1231002300.

The previous prime is 1231002263. The next prime is 1231002313. The reversal of 1231002301 is 1032001321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 965344900 + 265657401 = 31070^2 + 16299^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231002301 - 29 = 1231001789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231002361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615501150 + 615501151.

It is an arithmetic number, because the mean of its divisors is an integer number (615501151).

Almost surely, 21231002301 is an apocalyptic number.

It is an amenable number.

1231002301 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231002301 is an equidigital number, since it uses as much as digits as its factorization.

1231002301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1231002301 is about 35085.6423769040. The cubic root of 1231002301 is about 1071.7322222888.

Adding to 1231002301 its reverse (1032001321), we get a palindrome (2263003622).

The spelling of 1231002301 in words is "one billion, two hundred thirty-one million, two thousand, three hundred one".