31344013334431 has 24 divisors (see below), whose sum is σ = 37068977128560. Its totient is φ = 26418845174400.

The previous prime is 31344013334383. The next prime is 31344013334443. The reversal of 31344013334431 is 13443331044313.

It is not a de Polignac number, because 31344013334431 - 2³⁷ = 31206574380959 is a prime.

It is a super-2 number, since 2×31344013334431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31344013334831) 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, 9874396 + ... + 12656686.

It is an arithmetic number, because the mean of its divisors is an integer number (1544540713690).

Almost surely, 2^{31344013334431} is an apocalyptic number.

31344013334431 is a deficient number, since it is larger than the sum of its proper divisors (5724963794129).

31344013334431 is a wasteful number, since it uses less digits than its factorization.

31344013334431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786135 (or 2786128 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 37.

Adding to 31344013334431 its reverse (13443331044313), we get a palindrome (44787344378744).

The spelling of 31344013334431 in words is "thirty-one trillion, three hundred forty-four billion, thirteen million, three hundred thirty-four thousand, four hundred thirty-one".