20321514511232 has 128 divisors (see below), whose sum is σ = 48510377798400. Its totient is φ = 8370417623040.

The previous prime is 20321514511187. The next prime is 20321514511303. The reversal of 20321514511232 is 23211541512302.

20321514511232 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15898313 + ... + 17128904.

It is an arithmetic number, because the mean of its divisors is an integer number (378987326550).

Almost surely, 2^{20321514511232} is an apocalyptic number.

20321514511232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20321514511232 is an abundant number, since it is smaller than the sum of its proper divisors (28188863287168).

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

20321514511232 is a wasteful number, since it uses less digits than its factorization.

20321514511232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33027284 (or 33027272 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 20321514511232 in words is "twenty trillion, three hundred twenty-one billion, five hundred fourteen million, five hundred eleven thousand, two hundred thirty-two".