2133400111520 has 48 divisors (see below), whose sum is σ = 5122783324008. Its totient is φ = 839370531840.

The previous prime is 2133400111511. The next prime is 2133400111561. The reversal of 2133400111520 is 251110043312.

It can be written as a sum of positive squares in 4 ways, for example, as 1486282833424 + 647117278096 = 1219132^2 + 804436^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109283279 + ... + 109302798.

Almost surely, 2^{2133400111520} is an apocalyptic number.

2133400111520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2133400111520 is an abundant number, since it is smaller than the sum of its proper divisors (2989383212488).

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

2133400111520 is a wasteful number, since it uses less digits than its factorization.

2133400111520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218586153 (or 218586145 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 2133400111520 its reverse (251110043312), we get a palindrome (2384510154832).

The spelling of 2133400111520 in words is "two trillion, one hundred thirty-three billion, four hundred million, one hundred eleven thousand, five hundred twenty".