31025244252013 has 16 divisors (see below), whose sum is σ = 35393553432576. Its totient is φ = 26920204320240.

The previous prime is 31025244251993. The next prime is 31025244252019.

31025244252013 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31025244252013 - 2¹³ = 31025244243821 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31025244252013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31025244252019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132312045 + ... + 132546322.

It is an arithmetic number, because the mean of its divisors is an integer number (2212097089536).

Almost surely, 2^{31025244252013} is an apocalyptic number.

It is an amenable number.

31025244252013 is a deficient number, since it is larger than the sum of its proper divisors (4368309180563).

31025244252013 is a wasteful number, since it uses less digits than its factorization.

31025244252013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264858864.

The product of its (nonzero) digits is 57600, while the sum is 34.

It can be divided in two parts, 3102524 and 4252013, that added together give a palindrome (7354537).

The spelling of 31025244252013 in words is "thirty-one trillion, twenty-five billion, two hundred forty-four million, two hundred fifty-two thousand, thirteen".