421021242120124 has 48 divisors (see below), whose sum is σ = 746356959000576. Its totient is φ = 207793648108800.

The previous prime is 421021242120077. The next prime is 421021242120169.

421021242120124 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 421021242120092 and 421021242120101.

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, 1330658767 + ... + 1330975129.

It is an arithmetic number, because the mean of its divisors is an integer number (15549103312512).

Almost surely, 2^{421021242120124} is an apocalyptic number.

It is an amenable number.

421021242120124 is a deficient number, since it is larger than the sum of its proper divisors (325335716880452).

421021242120124 is a wasteful number, since it uses less digits than its factorization.

421021242120124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329986 (or 329984 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The spelling of 421021242120124 in words is "four hundred twenty-one trillion, twenty-one billion, two hundred forty-two million, one hundred twenty thousand, one hundred twenty-four".