70220843231 has 32 divisors (see below), whose sum is σ = 88896476160. Its totient is φ = 53876793600.

The previous prime is 70220843227. The next prime is 70220843237. The reversal of 70220843231 is 13234802207.

It is not a de Polignac number, because 70220843231 - 2² = 70220843227 is a prime.

It is a super-2 number, since 2×70220843231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70220843237) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 4414865 + ... + 4430741.

It is an arithmetic number, because the mean of its divisors is an integer number (2778014880).

Almost surely, 2^70220843231 is an apocalyptic number.

70220843231 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

70220843231 is a deficient number, since it is larger than the sum of its proper divisors (18675632929).

70220843231 is a wasteful number, since it uses less digits than its factorization.

70220843231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16775.

The product of its (nonzero) digits is 16128, while the sum is 32.

The spelling of 70220843231 in words is "seventy billion, two hundred twenty million, eight hundred forty-three thousand, two hundred thirty-one".