31013343144 has 96 divisors (see below), whose sum is σ = 99090301440. Its totient is φ = 8575113600.

The previous prime is 31013343073. The next prime is 31013343149. The reversal of 31013343144 is 44134331013.

31013343144 is a `hidden beast` number, since 3 + 10 + 1 + 334 + 314 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (31013343149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 976867 + ... + 1008114.

It is an arithmetic number, because the mean of its divisors is an integer number (1032190640).

Almost surely, 2^31013343144 is an apocalyptic number.

It is an amenable number.

31013343144 is an abundant number, since it is smaller than the sum of its proper divisors (68076958296).

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

31013343144 is a wasteful number, since it uses less digits than its factorization.

31013343144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985031 (or 1985024 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 31013343144 its reverse (44134331013), we get a palindrome (75147674157).

The spelling of 31013343144 in words is "thirty-one billion, thirteen million, three hundred forty-three thousand, one hundred forty-four".