31041313331 has 16 divisors (see below), whose sum is σ = 35625998016. Its totient is φ = 26494304256.

The previous prime is 31041313249. The next prime is 31041313399. The reversal of 31041313331 is 13331314013.

It is not a de Polignac number, because 31041313331 - 2²² = 31037119027 is a prime.

It is a super-2 number, since 2×31041313331² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31041313297 and 31041313306.

It is not an unprimeable number, because it can be changed into a prime (31041313031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3906995 + ... + 3914931.

It is an arithmetic number, because the mean of its divisors is an integer number (2226624876).

Almost surely, 2^31041313331 is an apocalyptic number.

31041313331 is a deficient number, since it is larger than the sum of its proper divisors (4584684685).

31041313331 is a wasteful number, since it uses less digits than its factorization.

31041313331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10238.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 31041313331 its reverse (13331314013), we get a palindrome (44372627344).

The spelling of 31041313331 in words is "thirty-one billion, forty-one million, three hundred thirteen thousand, three hundred thirty-one".