102310323021 has 32 divisors (see below), whose sum is σ = 153107435520. Its totient is φ = 67515984432.

The previous prime is 102310323007. The next prime is 102310323029. The reversal of 102310323021 is 120323013201.

102310323021 is a `hidden beast` number, since 10 + 2 + 310 + 323 + 0 + 21 = 666.

It is not a de Polignac number, because 102310323021 - 2²⁷ = 102176105293 is a prime.

It is a super-2 number, since 2×102310323021² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102310322985 and 102310323003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102310323029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8022376 + ... + 8035118.

It is an arithmetic number, because the mean of its divisors is an integer number (4784607360).

Almost surely, 2^102310323021 is an apocalyptic number.

It is an amenable number.

102310323021 is a deficient number, since it is larger than the sum of its proper divisors (50797112499).

102310323021 is a wasteful number, since it uses less digits than its factorization.

102310323021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15742 (or 15736 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 102310323021 its reverse (120323013201), we get a palindrome (222633336222).

The spelling of 102310323021 in words is "one hundred two billion, three hundred ten million, three hundred twenty-three thousand, twenty-one".