31145344354113 has 8 divisors (see below), whose sum is σ = 45302319060576. Its totient is φ = 18875966275200.

The previous prime is 31145344354087. The next prime is 31145344354141.

31145344354113 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31145344354113 - 2¹² = 31145344350017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31145344354013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471899156848 + ... + 471899156913.

It is an arithmetic number, because the mean of its divisors is an integer number (5662789882572).

Almost surely, 2^{31145344354113} is an apocalyptic number.

31145344354113 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31145344354113 is a deficient number, since it is larger than the sum of its proper divisors (14156974706463).

31145344354113 is a wasteful number, since it uses less digits than its factorization.

31145344354113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943798313775.

The product of its digits is 518400, while the sum is 42.

It can be divided in two parts, 3114534 and 4354113, that added together give a palindrome (7468647).

The spelling of 31145344354113 in words is "thirty-one trillion, one hundred forty-five billion, three hundred forty-four million, three hundred fifty-four thousand, one hundred thirteen".