31230040134412 has 48 divisors (see below), whose sum is σ = 62545527293760. Its totient is φ = 13365994752000.

The previous prime is 31230040134281. The next prime is 31230040134431. The reversal of 31230040134412 is 21443104003213.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 634719412 + ... + 634768612.

It is an arithmetic number, because the mean of its divisors is an integer number (1303031818620).

Almost surely, 2^{31230040134412} is an apocalyptic number.

It is an amenable number.

31230040134412 is an abundant number, since it is smaller than the sum of its proper divisors (31315487159348).

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

31230040134412 is a wasteful number, since it uses less digits than its factorization.

31230040134412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79762 (or 79760 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 31230040134412 its reverse (21443104003213), we get a palindrome (52673144137625).

The spelling of 31230040134412 in words is "thirty-one trillion, two hundred thirty billion, forty million, one hundred thirty-four thousand, four hundred twelve".