20131312331302 has 8 divisors (see below), whose sum is σ = 31238243272800. Its totient is φ = 9718564573704.

The previous prime is 20131312331297. The next prime is 20131312331359. The reversal of 20131312331302 is 20313321313102.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 173545795902 + ... + 173545796017.

It is an arithmetic number, because the mean of its divisors is an integer number (3904780409100).

Almost surely, 2^{20131312331302} is an apocalyptic number.

20131312331302 is a deficient number, since it is larger than the sum of its proper divisors (11106930941498).

20131312331302 is a wasteful number, since it uses less digits than its factorization.

20131312331302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347091591950.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 20131312331302 its reverse (20313321313102), we get a palindrome (40444633644404).

The spelling of 20131312331302 in words is "twenty trillion, one hundred thirty-one billion, three hundred twelve million, three hundred thirty-one thousand, three hundred two".