31301331212004 has 72 divisors (see below), whose sum is σ = 84963567030048. Its totient is φ = 8942941607040.

The previous prime is 31301331211967. The next prime is 31301331212029. The reversal of 31301331212004 is 40021213310313.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17223424 + ... + 18953864.

It is an arithmetic number, because the mean of its divisors is an integer number (1180049542084).

Almost surely, 2^{31301331212004} is an apocalyptic number.

It is an amenable number.

31301331212004 is an abundant number, since it is smaller than the sum of its proper divisors (53662235818044).

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

31301331212004 is a wasteful number, since it uses less digits than its factorization.

31301331212004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761225 (or 1761216 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31301331212004 its reverse (40021213310313), we get a palindrome (71322544522317).

The spelling of 31301331212004 in words is "thirty-one trillion, three hundred one billion, three hundred thirty-one million, two hundred twelve thousand, four".