421053003155 has 16 divisors (see below), whose sum is σ = 535007060640. Its totient is φ = 317015066112.

The previous prime is 421053003149. The next prime is 421053003179. The reversal of 421053003155 is 551300350124.

It is a cyclic number.

It is not a de Polignac number, because 421053003155 - 2⁴ = 421053003139 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2301152 + ... + 2477378.

It is an arithmetic number, because the mean of its divisors is an integer number (33437941290).

Almost surely, 2^421053003155 is an apocalyptic number.

421053003155 is a deficient number, since it is larger than the sum of its proper divisors (113954057485).

421053003155 is a wasteful number, since it uses less digits than its factorization.

421053003155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204358.

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 421053003155 its reverse (551300350124), we get a palindrome (972353353279).

The spelling of 421053003155 in words is "four hundred twenty-one billion, fifty-three million, three thousand, one hundred fifty-five".