31113004312 has 16 divisors (see below), whose sum is σ = 62824335840. Its totient is φ = 14359848096.

The previous prime is 31113004267. The next prime is 31113004319. The reversal of 31113004312 is 21340031113.

It is a self number, because there is not a number n which added to its sum of digits gives 31113004312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31113004319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149581648 + ... + 149581855.

It is an arithmetic number, because the mean of its divisors is an integer number (3926520990).

Almost surely, 2^31113004312 is an apocalyptic number.

It is an amenable number.

31113004312 is an abundant number, since it is smaller than the sum of its proper divisors (31711331528).

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

31113004312 is a wasteful number, since it uses less digits than its factorization.

31113004312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299163522 (or 299163518 counting only the distinct ones).

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

Adding to 31113004312 its reverse (21340031113), we get a palindrome (52453035425).

The spelling of 31113004312 in words is "thirty-one billion, one hundred thirteen million, four thousand, three hundred twelve".