2123231211120 has 80 divisors (see below), whose sum is σ = 6693576405120. Its totient is φ = 556598460672.

The previous prime is 2123231211119. The next prime is 2123231211137. The reversal of 2123231211120 is 211121323212.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×2123231211120² (a number of 25 digits) contains 22 as substring.

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, 74958694 + ... + 74987013.

It is an arithmetic number, because the mean of its divisors is an integer number (83669705064).

Almost surely, 2^{2123231211120} is an apocalyptic number.

2123231211120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123231211120 is an abundant number, since it is smaller than the sum of its proper divisors (4570345194000).

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

2123231211120 is a wasteful number, since it uses less digits than its factorization.

2123231211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149945782 (or 149945776 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2123231211120 its reverse (211121323212), we get a palindrome (2334352534332).

The spelling of 2123231211120 in words is "two trillion, one hundred twenty-three billion, two hundred thirty-one million, two hundred eleven thousand, one hundred twenty".