1430020231 has 2 divisors, whose sum is σ = 1430020232. Its totient is φ = 1430020230.

The previous prime is 1430020223. The next prime is 1430020259. The reversal of 1430020231 is 1320200341.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1430020231 - 2³ = 1430020223 is a prime.

It is a super-3 number, since 3×1430020231³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1430020211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715010115 + 715010116.

It is an arithmetic number, because the mean of its divisors is an integer number (715010116).

Almost surely, 2^1430020231 is an apocalyptic number.

1430020231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1430020231 is an equidigital number, since it uses as much as digits as its factorization.

1430020231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1430020231 is about 37815.6082986906. The cubic root of 1430020231 is about 1126.6284842963.

Adding to 1430020231 its reverse (1320200341), we get a palindrome (2750220572).

The spelling of 1430020231 in words is "one billion, four hundred thirty million, twenty thousand, two hundred thirty-one".