31201312040304 has 160 divisors (see below), whose sum is σ = 97659706331136. Its totient is φ = 8393926164480.

The previous prime is 31201312040291. The next prime is 31201312040323. The reversal of 31201312040304 is 40304021310213.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 40094577 + ... + 40865360.

Almost surely, 2^{31201312040304} is an apocalyptic number.

It is an amenable number.

31201312040304 is an abundant number, since it is smaller than the sum of its proper divisors (66458394290832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31201312040304 is a wasteful number, since it uses less digits than its factorization.

31201312040304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80960023 (or 80960017 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31201312040304 its reverse (40304021310213), we get a palindrome (71505333350517).

The spelling of 31201312040304 in words is "thirty-one trillion, two hundred one billion, three hundred twelve million, forty thousand, three hundred four".