123420120111004 has 48 divisors (see below), whose sum is σ = 228941449027200. Its totient is φ = 58054990165056.

The previous prime is 123420120110993. The next prime is 123420120111019. The reversal of 123420120111004 is 400111021024321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2484294 + ... + 15906349.

It is an arithmetic number, because the mean of its divisors is an integer number (4769613521400).

Almost surely, 2^{123420120111004} is an apocalyptic number.

It is an amenable number.

123420120111004 is a deficient number, since it is larger than the sum of its proper divisors (105521328916196).

123420120111004 is a wasteful number, since it uses less digits than its factorization.

123420120111004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18391282 (or 18391280 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 123420120111004 its reverse (400111021024321), we get a palindrome (523531141135325).

The spelling of 123420120111004 in words is "one hundred twenty-three trillion, four hundred twenty billion, one hundred twenty million, one hundred eleven thousand, four".