123121232111404 has 12 divisors (see below), whose sum is σ = 218496834451728. Its totient is φ = 60693565125200.

The previous prime is 123121232111351. The next prime is 123121232111431. The reversal of 123121232111404 is 404111232121321.

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 3 ways as a sum of consecutive naturals, for example, 216762732307 + ... + 216762732874.

It is an arithmetic number, because the mean of its divisors is an integer number (18208069537644).

Almost surely, 2^{123121232111404} is an apocalyptic number.

It is an amenable number.

123121232111404 is a deficient number, since it is larger than the sum of its proper divisors (95375602340324).

123121232111404 is a wasteful number, since it uses less digits than its factorization.

123121232111404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433525465256 (or 433525465254 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 123121232111404 its reverse (404111232121321), we get a palindrome (527232464232725).

The spelling of 123121232111404 in words is "one hundred twenty-three trillion, one hundred twenty-one billion, two hundred thirty-two million, one hundred eleven thousand, four hundred four".