123001401442420 has 24 divisors (see below), whose sum is σ = 258303155055624. Its totient is φ = 49200520190976.

The previous prime is 123001401442343. The next prime is 123001401442453. The reversal of 123001401442420 is 24244104100321.

It can be written as a sum of positive squares in 4 ways, for example, as 84968353037584 + 38033048404836 = 9217828^2 + 6167094^2 .

It is a congruent number.

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, 39580272 + ... + 42574648.

It is an arithmetic number, because the mean of its divisors is an integer number (10762631460651).

Almost surely, 2^{123001401442420} is an apocalyptic number.

123001401442420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123001401442420 is an abundant number, since it is smaller than the sum of its proper divisors (135301753613204).

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

123001401442420 is a wasteful number, since it uses less digits than its factorization.

123001401442420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5048259 (or 5048257 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 123001401442420 its reverse (24244104100321), we get a palindrome (147245505542741).

The spelling of 123001401442420 in words is "one hundred twenty-three trillion, one billion, four hundred one million, four hundred forty-two thousand, four hundred twenty".