131212320001004 has 48 divisors (see below), whose sum is σ = 252105424099200. Its totient is φ = 59259381216000.

The previous prime is 131212320000973. The next prime is 131212320001031. The reversal of 131212320001004 is 400100023212131.

It is a super-2 number, since 2×131212320001004² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2523287 + ... + 16394865.

It is an arithmetic number, because the mean of its divisors is an integer number (5252196335400).

Almost surely, 2^{131212320001004} is an apocalyptic number.

It is an amenable number.

131212320001004 is a deficient number, since it is larger than the sum of its proper divisors (120893104098196).

131212320001004 is a wasteful number, since it uses less digits than its factorization.

131212320001004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13872974 (or 13872972 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 131212320001004 its reverse (400100023212131), we get a palindrome (531312343213135).

The spelling of 131212320001004 in words is "one hundred thirty-one trillion, two hundred twelve billion, three hundred twenty million, one thousand, four".