31302034134312 has 32 divisors (see below), whose sum is σ = 78300556145280. Its totient is φ = 10427948603520.

The previous prime is 31302034134247. The next prime is 31302034134317. The reversal of 31302034134312 is 21343143020313.

It is a self number, because there is not a number n which added to its sum of digits gives 31302034134312.

It is not an unprimeable number, because it can be changed into a prime (31302034134317) 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, 378881248 + ... + 378963855.

It is an arithmetic number, because the mean of its divisors is an integer number (2446892379540).

Almost surely, 2^{31302034134312} is an apocalyptic number.

It is an amenable number.

31302034134312 is an abundant number, since it is smaller than the sum of its proper divisors (46998522010968).

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

31302034134312 is a wasteful number, since it uses less digits than its factorization.

31302034134312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757846833 (or 757846829 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 31302034134312 its reverse (21343143020313), we get a palindrome (52645177154625).

The spelling of 31302034134312 in words is "thirty-one trillion, three hundred two billion, thirty-four million, one hundred thirty-four thousand, three hundred twelve".