2102321201 has 8 divisors (see below), whose sum is σ = 2226413160. Its totient is φ = 1978276608.

The previous prime is 2102321191. The next prime is 2102321227. The reversal of 2102321201 is 1021232012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1432546801 + 669774400 = 37849^2 + 25880^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102321201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2102321281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124475 + ... + 140351.

It is an arithmetic number, because the mean of its divisors is an integer number (278301645).

Almost surely, 2^2102321201 is an apocalyptic number.

It is an amenable number.

2102321201 is a deficient number, since it is larger than the sum of its proper divisors (124091959).

2102321201 is a wasteful number, since it uses less digits than its factorization.

2102321201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23683.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2102321201 is about 45851.0763341495. The cubic root of 2102321201 is about 1281.0508137360.

Adding to 2102321201 its reverse (1021232012), we get a palindrome (3123553213).

It can be divided in two parts, 21023 and 21201, that added together give a palindrome (42224).

The spelling of 2102321201 in words is "two billion, one hundred two million, three hundred twenty-one thousand, two hundred one".