31245013312051 has 48 divisors (see below), whose sum is σ = 40242479989248. Its totient is φ = 23984043753600.

The previous prime is 31245013312049. The next prime is 31245013312103. The reversal of 31245013312051 is 15021331054213.

It is not a de Polignac number, because 31245013312051 - 2¹ = 31245013312049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31245013312001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31900146 + ... + 32865016.

It is an arithmetic number, because the mean of its divisors is an integer number (838384999776).

Almost surely, 2^{31245013312051} is an apocalyptic number.

31245013312051 is a deficient number, since it is larger than the sum of its proper divisors (8997466677197).

31245013312051 is a wasteful number, since it uses less digits than its factorization.

31245013312051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965792 (or 965785 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 31245013312051 its reverse (15021331054213), we get a palindrome (46266344366264).

The spelling of 31245013312051 in words is "thirty-one trillion, two hundred forty-five billion, thirteen million, three hundred twelve thousand, fifty-one".