102020310312 has 32 divisors (see below), whose sum is σ = 263278222080. Its totient is φ = 32909777280.

The previous prime is 102020310299. The next prime is 102020310317. The reversal of 102020310312 is 213013020201.

It is a junction number, because it is equal to n+sod(n) for n = 102020310291 and 102020310300.

It is not an unprimeable number, because it can be changed into a prime (102020310317) 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, 68561293 + ... + 68562780.

It is an arithmetic number, because the mean of its divisors is an integer number (8227444440).

Almost surely, 2^102020310312 is an apocalyptic number.

102020310312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102020310312 is an abundant number, since it is smaller than the sum of its proper divisors (161257911768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102020310312 is a wasteful number, since it uses less digits than its factorization.

102020310312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137124113 (or 137124109 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 102020310312 its reverse (213013020201), we get a palindrome (315033330513).

The spelling of 102020310312 in words is "one hundred two billion, twenty million, three hundred ten thousand, three hundred twelve".