102031231312 has 20 divisors (see below), whose sum is σ = 209314070676. Its totient is φ = 48014696960.

The previous prime is 102031231307. The next prime is 102031231321. The reversal of 102031231312 is 213132130201.

It can be written as a sum of positive squares in 2 ways, for example, as 69514486336 + 32516744976 = 263656^2 + 180324^2 .

It is a super-3 number, since 3×102031231312³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102031231312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187557139 + ... + 187557682.

Almost surely, 2^102031231312 is an apocalyptic number.

It is an amenable number.

102031231312 is an abundant number, since it is smaller than the sum of its proper divisors (107282839364).

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

102031231312 is a wasteful number, since it uses less digits than its factorization.

102031231312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375114846 (or 375114840 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 102031231312 its reverse (213132130201), we get a palindrome (315163361513).

The spelling of 102031231312 in words is "one hundred two billion, thirty-one million, two hundred thirty-one thousand, three hundred twelve".