102231102233021 has 4 divisors (see below), whose sum is σ = 102357157846944. Its totient is φ = 102105046619100.

The previous prime is 102231102233003. The next prime is 102231102233027. The reversal of 102231102233021 is 120332201132201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102231102233021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102231102233027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63027805745 + ... + 63027807366.

It is an arithmetic number, because the mean of its divisors is an integer number (25589289461736).

Almost surely, 2^{102231102233021} is an apocalyptic number.

It is an amenable number.

102231102233021 is a deficient number, since it is larger than the sum of its proper divisors (126055613923).

102231102233021 is an equidigital number, since it uses as much as digits as its factorization.

102231102233021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126055613922.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 102231102233021 its reverse (120332201132201), we get a palindrome (222563303365222).

The spelling of 102231102233021 in words is "one hundred two trillion, two hundred thirty-one billion, one hundred two million, two hundred thirty-three thousand, twenty-one".