123011220131420 has 12 divisors (see below), whose sum is σ = 258323562276024. Its totient is φ = 49204488052560.

The previous prime is 123011220131377. The next prime is 123011220131447. The reversal of 123011220131420 is 24131022110321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3075280503266 + ... + 3075280503305.

It is an arithmetic number, because the mean of its divisors is an integer number (21526963523002).

Almost surely, 2^{123011220131420} is an apocalyptic number.

123011220131420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123011220131420 is an abundant number, since it is smaller than the sum of its proper divisors (135312342144604).

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

123011220131420 is a wasteful number, since it uses less digits than its factorization.

123011220131420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6150561006580 (or 6150561006578 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 123011220131420 its reverse (24131022110321), we get a palindrome (147142242241741).

The spelling of 123011220131420 in words is "one hundred twenty-three trillion, eleven billion, two hundred twenty million, one hundred thirty-one thousand, four hundred twenty".