121400043013044 has 120 divisors (see below), whose sum is σ = 317596757089920. Its totient is φ = 40436973347904.

The previous prime is 121400043013013. The next prime is 121400043013177. The reversal of 121400043013044 is 440310340004121.

121400043013044 is a `hidden beast` number, since 1 + 21 + 40 + 0 + 0 + 430 + 130 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 121400043012999 and 121400043013017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3017104494 + ... + 3017144730.

It is an arithmetic number, because the mean of its divisors is an integer number (2646639642416).

Almost surely, 2^{121400043013044} is an apocalyptic number.

It is an amenable number.

121400043013044 is an abundant number, since it is smaller than the sum of its proper divisors (196196714076876).

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

121400043013044 is a wasteful number, since it uses less digits than its factorization.

121400043013044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46859 (or 46848 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 121400043013044 its reverse (440310340004121), we get a palindrome (561710383017165).

The spelling of 121400043013044 in words is "one hundred twenty-one trillion, four hundred billion, forty-three million, thirteen thousand, forty-four".