2123131012000 has 96 divisors (see below), whose sum is σ = 5443338910464. Its totient is φ = 812328352000.

The previous prime is 2123131011997. The next prime is 2123131012001. The reversal of 2123131012000 is 2101313212.

It is a super-2 number, since 2×2123131012000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (2123131012001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11446756 + ... + 11630755.

It is an arithmetic number, because the mean of its divisors is an integer number (56701446984).

Almost surely, 2^{2123131012000} is an apocalyptic number.

2123131012000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123131012000 is an abundant number, since it is smaller than the sum of its proper divisors (3320207898464).

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

2123131012000 is a wasteful number, since it uses less digits than its factorization.

2123131012000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23077559 (or 23077541 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 2123131012000 its reverse (2101313212), we get a palindrome (2125232325212).

The spelling of 2123131012000 in words is "two trillion, one hundred twenty-three billion, one hundred thirty-one million, twelve thousand".