123210001032320 has 64 divisors (see below), whose sum is σ = 297465234702840. Its totient is φ = 48796039987200.

The previous prime is 123210001032281. The next prime is 123210001032361. The reversal of 123210001032320 is 23230100012321.

It can be written as a sum of positive squares in 4 ways, for example, as 112078809745984 + 11131191286336 = 10586728^2 + 3336344^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 123210001032292 and 123210001032301.

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, 952983017 + ... + 953112296.

Almost surely, 2^{123210001032320} is an apocalyptic number.

123210001032320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123210001032320 is an abundant number, since it is smaller than the sum of its proper divisors (174255233670520).

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

123210001032320 is a wasteful number, since it uses less digits than its factorization.

123210001032320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906095433 (or 1906095421 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 123210001032320 its reverse (23230100012321), we get a palindrome (146440101044641).

The spelling of 123210001032320 in words is "one hundred twenty-three trillion, two hundred ten billion, one million, thirty-two thousand, three hundred twenty".