102020312131110 has 80 divisors (see below), whose sum is σ = 277793705217600. Its totient is φ = 26861044189824.

The previous prime is 102020312131081. The next prime is 102020312131123. The reversal of 102020312131110 is 11131213020201.

102020312131110 is a `hidden beast` number, since 1 + 0 + 20 + 20 + 312 + 1 + 311 + 1 + 0 = 666.

It is a super-2 number, since 2×102020312131110² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 797094255 + ... + 797222234.

It is an arithmetic number, because the mean of its divisors is an integer number (3472421315220).

Almost surely, 2^{102020312131110} is an apocalyptic number.

102020312131110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102020312131110 is an abundant number, since it is smaller than the sum of its proper divisors (175773393086490).

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

102020312131110 is a wasteful number, since it uses less digits than its factorization.

102020312131110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594316587 (or 1594316578 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 102020312131110 its reverse (11131213020201), we get a palindrome (113151525151311).

The spelling of 102020312131110 in words is "one hundred two trillion, twenty billion, three hundred twelve million, one hundred thirty-one thousand, one hundred ten".