123031442220320 has 48 divisors (see below), whose sum is σ = 290679103286208. Its totient is φ = 49209644225280.

The previous prime is 123031442220319. The next prime is 123031442220347. The reversal of 123031442220320 is 23022244130321.

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, 20217116 + ... + 25588955.

It is an arithmetic number, because the mean of its divisors is an integer number (6055814651796).

Almost surely, 2^{123031442220320} is an apocalyptic number.

123031442220320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123031442220320 is an abundant number, since it is smaller than the sum of its proper divisors (167647661065888).

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

123031442220320 is a wasteful number, since it uses less digits than its factorization.

123031442220320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45822873 (or 45822865 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 123031442220320 its reverse (23022244130321), we get a palindrome (146053686350641).

The spelling of 123031442220320 in words is "one hundred twenty-three trillion, thirty-one billion, four hundred forty-two million, two hundred twenty thousand, three hundred twenty".