2123313001000 has 64 divisors (see below), whose sum is σ = 5017746249360. Its totient is φ = 840916000000.

The previous prime is 2123313000997. The next prime is 2123313001013. The reversal of 2123313001000 is 1003133212.

It can be written as a sum of positive squares in 8 ways, for example, as 1219288557796 + 904024443204 = 1104214^2 + 950802^2 .

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, 10410451 + ... + 10612450.

Almost surely, 2^{2123313001000} is an apocalyptic number.

2123313001000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123313001000 is an abundant number, since it is smaller than the sum of its proper divisors (2894433248360).

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

2123313001000 is a wasteful number, since it uses less digits than its factorization.

2123313001000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21023023 (or 21023009 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 2123313001000 its reverse (1003133212), we get a palindrome (2124316134212).

The spelling of 2123313001000 in words is "two trillion, one hundred twenty-three billion, three hundred thirteen million, one thousand".