31273040404 has 12 divisors (see below), whose sum is σ = 57947104404. Its totient is φ = 14716724864.

The previous prime is 31273040333. The next prime is 31273040411. The reversal of 31273040404 is 40404037213.

It can be written as a sum of positive squares in 2 ways, for example, as 21921763600 + 9351276804 = 148060^2 + 96702^2 .

It is a super-2 number, since 2×31273040404² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229948759 + ... + 229948894.

It is an arithmetic number, because the mean of its divisors is an integer number (4828925367).

Almost surely, 2^31273040404 is an apocalyptic number.

31273040404 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31273040404 is a deficient number, since it is larger than the sum of its proper divisors (26674064000).

31273040404 is a wasteful number, since it uses less digits than its factorization.

31273040404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459897674 (or 459897672 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

Adding to 31273040404 its reverse (40404037213), we get a palindrome (71677077617).

The spelling of 31273040404 in words is "thirty-one billion, two hundred seventy-three million, forty thousand, four hundred four".