102021232001 has 12 divisors (see below), whose sum is σ = 110506064508. Its totient is φ = 94144999104.

The previous prime is 102021231989. The next prime is 102021232007. The reversal of 102021232001 is 100232120201.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 7043237776 + 94977994225 = 83924^2 + 308185^2 .

It is a de Polignac number, because none of the positive numbers 2^k-102021232001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102021232007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 480551 + ... + 659523.

It is an arithmetic number, because the mean of its divisors is an integer number (9208838709).

Almost surely, 2^102021232001 is an apocalyptic number.

It is an amenable number.

102021232001 is a deficient number, since it is larger than the sum of its proper divisors (8484832507).

102021232001 is a wasteful number, since it uses less digits than its factorization.

102021232001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182372 (or 182359 counting only the distinct ones).

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

Adding to 102021232001 its reverse (100232120201), we get a palindrome (202253352202).

The spelling of 102021232001 in words is "one hundred two billion, twenty-one million, two hundred thirty-two thousand, one".