2123207533500 has 96 divisors (see below), whose sum is σ = 6299436806208. Its totient is φ = 555505849600.

The previous prime is 2123207533439. The next prime is 2123207533511. The reversal of 2123207533500 is 53357023212.

It is a happy number.

It is a super-2 number, since 2×2123207533500² (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 31 ways as a sum of consecutive naturals, for example, 13274007 + ... + 13433006.

It is an arithmetic number, because the mean of its divisors is an integer number (65619133398).

Almost surely, 2^{2123207533500} is an apocalyptic number.

2123207533500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123207533500 is an abundant number, since it is smaller than the sum of its proper divisors (4176229272708).

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

2123207533500 is a wasteful number, since it uses less digits than its factorization.

2123207533500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26707088 (or 26707076 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 33.

The spelling of 2123207533500 in words is "two trillion, one hundred twenty-three billion, two hundred seven million, five hundred thirty-three thousand, five hundred".