31344300031 has 16 divisors (see below), whose sum is σ = 34282828800. Its totient is φ = 28420712320.

The previous prime is 31344300023. The next prime is 31344300041. The reversal of 31344300031 is 13000344313.

It is a happy number.

It is not a de Polignac number, because 31344300031 - 2³ = 31344300023 is a prime.

It is a super-2 number, since 2×31344300031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31344299975 and 31344300011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31344300041) 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, 13064370 + ... + 13066768.

It is an arithmetic number, because the mean of its divisors is an integer number (2142676800).

Almost surely, 2^31344300031 is an apocalyptic number.

31344300031 is a deficient number, since it is larger than the sum of its proper divisors (2938528769).

31344300031 is a wasteful number, since it uses less digits than its factorization.

31344300031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 31344300031 its reverse (13000344313), we get a palindrome (44344644344).

It can be divided in two parts, 313 and 44300031, that added together give a palindrome (44300344).

The spelling of 31344300031 in words is "thirty-one billion, three hundred forty-four million, three hundred thousand, thirty-one".