2123511532000 has 96 divisors (see below), whose sum is σ = 5385773562624. Its totient is φ = 822004416000.

The previous prime is 2123511531997. The next prime is 2123511532039. The reversal of 2123511532000 is 2351153212.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 8438547 + ... + 8686546.

It is an arithmetic number, because the mean of its divisors is an integer number (56101807944).

Almost surely, 2^{2123511532000} is an apocalyptic number.

2123511532000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123511532000 is an abundant number, since it is smaller than the sum of its proper divisors (3262262030624).

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

2123511532000 is a wasteful number, since it uses less digits than its factorization.

2123511532000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17125149 (or 17125131 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 2123511532000 its reverse (2351153212), we get a palindrome (2125862685212).

The spelling of 2123511532000 in words is "two trillion, one hundred twenty-three billion, five hundred eleven million, five hundred thirty-two thousand".