421021040120124 has 48 divisors (see below), whose sum is σ = 982684786950048. Its totient is φ = 140297155964928.

The previous prime is 421021040120063. The next prime is 421021040120129.

It is a happy number.

421021040120124 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 421021040120094 and 421021040120103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421021040120129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1008522124 + ... + 1008939500.

It is an arithmetic number, because the mean of its divisors is an integer number (20472599728126).

Almost surely, 2^{421021040120124} is an apocalyptic number.

It is an amenable number.

421021040120124 is an abundant number, since it is smaller than the sum of its proper divisors (561663746829924).

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

421021040120124 is a wasteful number, since it uses less digits than its factorization.

421021040120124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443054 (or 443052 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The spelling of 421021040120124 in words is "four hundred twenty-one trillion, twenty-one billion, forty million, one hundred twenty thousand, one hundred twenty-four".