421041020104 has 8 divisors (see below), whose sum is σ = 789451912710. Its totient is φ = 210520510048.

The previous prime is 421041020087. The next prime is 421041020149. The reversal of 421041020104 is 401020140124.

It can be written as a sum of positive squares in only one way, i.e., 340950888100 + 80090132004 = 583910^2 + 283002^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×421041020104² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26315063749 + ... + 26315063764.

Almost surely, 2^421041020104 is an apocalyptic number.

It is an amenable number.

421041020104 is a deficient number, since it is larger than the sum of its proper divisors (368410892606).

421041020104 is a wasteful number, since it uses less digits than its factorization.

421041020104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52630127519 (or 52630127515 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 421041020104 its reverse (401020140124), we get a palindrome (822061160228).

The spelling of 421041020104 in words is "four hundred twenty-one billion, forty-one million, twenty thousand, one hundred four".