102011131312 has 20 divisors (see below), whose sum is σ = 198398082960. Its totient is φ = 50811626048.

The previous prime is 102011131307. The next prime is 102011131337. The reversal of 102011131312 is 213131110201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12116887 + ... + 12125302.

It is an arithmetic number, because the mean of its divisors is an integer number (9919904148).

Almost surely, 2^102011131312 is an apocalyptic number.

It is an amenable number.

102011131312 is a deficient number, since it is larger than the sum of its proper divisors (96386951648).

102011131312 is a wasteful number, since it uses less digits than its factorization.

102011131312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24242460 (or 24242454 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 102011131312 its reverse (213131110201), we get a palindrome (315142241513).

The spelling of 102011131312 in words is "one hundred two billion, eleven million, one hundred thirty-one thousand, three hundred twelve".