102110031432021 has 4 divisors (see below), whose sum is σ = 136146708576032. Its totient is φ = 68073354288012.

The previous prime is 102110031432011. The next prime is 102110031432041. The reversal of 102110031432021 is 120234130011201.

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 not a de Polignac number, because 102110031432021 - 2¹⁹ = 102110030907733 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102110031432011) 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, 17018338572001 + ... + 17018338572006.

It is an arithmetic number, because the mean of its divisors is an integer number (34036677144008).

Almost surely, 2^{102110031432021} is an apocalyptic number.

It is an amenable number.

102110031432021 is a deficient number, since it is larger than the sum of its proper divisors (34036677144011).

102110031432021 is an equidigital number, since it uses as much as digits as its factorization.

102110031432021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34036677144010.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 102110031432021 its reverse (120234130011201), we get a palindrome (222344161443222).

The spelling of 102110031432021 in words is "one hundred two trillion, one hundred ten billion, thirty-one million, four hundred thirty-two thousand, twenty-one".