2123313231000 has 128 divisors (see below), whose sum is σ = 7134332587200. Its totient is φ = 522661708800.

The previous prime is 2123313230999. The next prime is 2123313231001. The reversal of 2123313231000 is 1323133212.

It is an interprime number because it is at equal distance from previous prime (2123313230999) and next prime (2123313231001).

It is a super-2 number, since 2×2123313231000² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123313231001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27182965 + ... + 27260964.

Almost surely, 2^{2123313231000} is an apocalyptic number.

2123313231000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123313231000 is an abundant number, since it is smaller than the sum of its proper divisors (5011019356200).

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

2123313231000 is a wasteful number, since it uses less digits than its factorization.

2123313231000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54443966 (or 54443952 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 2123313231000 its reverse (1323133212), we get a palindrome (2124636364212).

The spelling of 2123313231000 in words is "two trillion, one hundred twenty-three billion, three hundred thirteen million, two hundred thirty-one thousand".