31124131402 has 48 divisors (see below), whose sum is σ = 58110376320. Its totient is φ = 12241509696.

The previous prime is 31124131393. The next prime is 31124131411. The reversal of 31124131402 is 20413142113.

It is an interprime number because it is at equal distance from previous prime (31124131393) and next prime (31124131411).

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, 371299 + ... + 447337.

It is an arithmetic number, because the mean of its divisors is an integer number (1210632840).

Almost surely, 2^31124131402 is an apocalyptic number.

31124131402 is a deficient number, since it is larger than the sum of its proper divisors (26986244918).

31124131402 is a wasteful number, since it uses less digits than its factorization.

31124131402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76247 (or 76234 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 31124131402 its reverse (20413142113), we get a palindrome (51537273515).

The spelling of 31124131402 in words is "thirty-one billion, one hundred twenty-four million, one hundred thirty-one thousand, four hundred two".