2131121243004 has 48 divisors (see below), whose sum is σ = 5587956713472. Its totient is φ = 627219628992.

The previous prime is 2131121242997. The next prime is 2131121243039. The reversal of 2131121243004 is 4003421211312.

It is a congruent number.

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, 296975404 + ... + 296982579.

It is an arithmetic number, because the mean of its divisors is an integer number (116415764864).

Almost surely, 2^{2131121243004} is an apocalyptic number.

It is an amenable number.

2131121243004 is an abundant number, since it is smaller than the sum of its proper divisors (3456835470468).

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

2131121243004 is a wasteful number, since it uses less digits than its factorization.

2131121243004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593958026 (or 593958024 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 2131121243004 its reverse (4003421211312), we get a palindrome (6134542454316).

The spelling of 2131121243004 in words is "two trillion, one hundred thirty-one billion, one hundred twenty-one million, two hundred forty-three thousand, four".