121004243042 has 16 divisors (see below), whose sum is σ = 182281149792. Its totient is φ = 60244164960.

The previous prime is 121004243021. The next prime is 121004243057. The reversal of 121004243042 is 240342400121.

It is a junction number, because it is equal to n+sod(n) for n = 121004242999 and 121004243017.

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, 726533 + ... + 877415.

It is an arithmetic number, because the mean of its divisors is an integer number (11392571862).

Almost surely, 2^121004243042 is an apocalyptic number.

121004243042 is a deficient number, since it is larger than the sum of its proper divisors (61276906750).

121004243042 is a wasteful number, since it uses less digits than its factorization.

121004243042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152593.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 121004243042 its reverse (240342400121), we get a palindrome (361346643163).

The spelling of 121004243042 in words is "one hundred twenty-one billion, four million, two hundred forty-three thousand, forty-two".