102331212312 has 192 divisors, whose sum is σ = 311060217600. Its totient is φ = 27918992640.

The previous prime is 102331212311. The next prime is 102331212331. The reversal of 102331212312 is 213212133201.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102331212311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17821762 + ... + 17827502.

It is an arithmetic number, because the mean of its divisors is an integer number (1620105300).

Almost surely, 2^102331212312 is an apocalyptic number.

102331212312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102331212312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155530108800).

102331212312 is an abundant number, since it is smaller than the sum of its proper divisors (208729005288).

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

102331212312 is a wasteful number, since it uses less digits than its factorization.

102331212312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6446 (or 6435 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 102331212312 its reverse (213212133201), we get a palindrome (315543345513).

The spelling of 102331212312 in words is "one hundred two billion, three hundred thirty-one million, two hundred twelve thousand, three hundred twelve".