31404051371 has 16 divisors (see below), whose sum is σ = 41213794560. Its totient is φ = 23182757280.

The previous prime is 31404051361. The next prime is 31404051377. The reversal of 31404051371 is 17315040413.

It is not a de Polignac number, because 31404051371 - 2¹⁰ = 31404050347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31404051377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10731296 + ... + 10734221.

It is an arithmetic number, because the mean of its divisors is an integer number (2575862160).

Almost surely, 2^31404051371 is an apocalyptic number.

31404051371 is a deficient number, since it is larger than the sum of its proper divisors (9809743189).

31404051371 is a wasteful number, since it uses less digits than its factorization.

31404051371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21465554.

The product of its (nonzero) digits is 5040, while the sum is 29.

Adding to 31404051371 its reverse (17315040413), we get a palindrome (48719091784).

The spelling of 31404051371 in words is "thirty-one billion, four hundred four million, fifty-one thousand, three hundred seventy-one".