231020402555070 has 48 divisors (see below), whose sum is σ = 632266364892240. Its totient is φ = 58363049066112.

The previous prime is 231020402555029. The next prime is 231020402555147. The reversal of 231020402555070 is 70555204020132.

231020402555070 is a `hidden beast` number, since 2 + 3 + 10 + 2 + 0 + 4 + 0 + 25 + 550 + 70 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67549823599 + ... + 67549827018.

It is an arithmetic number, because the mean of its divisors is an integer number (13172215935255).

Almost surely, 2^{231020402555070} is an apocalyptic number.

231020402555070 is an abundant number, since it is smaller than the sum of its proper divisors (401245962337170).

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

231020402555070 is a wasteful number, since it uses less digits than its factorization.

231020402555070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135099650649 (or 135099650646 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The spelling of 231020402555070 in words is "two hundred thirty-one trillion, twenty billion, four hundred two million, five hundred fifty-five thousand, seventy".