2131023112004 has 6 divisors (see below), whose sum is σ = 3729290446014. Its totient is φ = 1065511556000.

The previous prime is 2131023112003. The next prime is 2131023112007. The reversal of 2131023112004 is 4002113201312.

It can be written as a sum of positive squares in only one way, i.e., 1645827278404 + 485195833600 = 1282898^2 + 696560^2 .

It is not an unprimeable number, because it can be changed into a prime (2131023112003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266377888997 + ... + 266377889004.

It is an arithmetic number, because the mean of its divisors is an integer number (621548407669).

Almost surely, 2^{2131023112004} is an apocalyptic number.

It is an amenable number.

2131023112004 is a deficient number, since it is larger than the sum of its proper divisors (1598267334010).

2131023112004 is a wasteful number, since it uses less digits than its factorization.

2131023112004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532755778005 (or 532755778003 counting only the distinct ones).

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

Adding to 2131023112004 its reverse (4002113201312), we get a palindrome (6133136313316).

The spelling of 2131023112004 in words is "two trillion, one hundred thirty-one billion, twenty-three million, one hundred twelve thousand, four".