123031400420001 has 16 divisors (see below), whose sum is σ = 164298639726144. Its totient is φ = 81892549932864.

The previous prime is 123031400419999. The next prime is 123031400420003. The reversal of 123031400420001 is 100024004130321.

It is an interprime number because it is at equal distance from previous prime (123031400419999) and next prime (123031400420003).

It is not a de Polignac number, because 123031400420001 - 2¹ = 123031400419999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123031400420001.

It is not an unprimeable number, because it can be changed into a prime (123031400420003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236924695 + ... + 237443411.

It is an arithmetic number, because the mean of its divisors is an integer number (10268664982884).

Almost surely, 2^{123031400420001} is an apocalyptic number.

It is an amenable number.

123031400420001 is a deficient number, since it is larger than the sum of its proper divisors (41267239306143).

123031400420001 is a wasteful number, since it uses less digits than its factorization.

123031400420001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642320.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 123031400420001 its reverse (100024004130321), we get a palindrome (223055404550322).

The spelling of 123031400420001 in words is "one hundred twenty-three trillion, thirty-one billion, four hundred million, four hundred twenty thousand, one".