231026755407 has 24 divisors (see below), whose sum is σ = 365951206656. Its totient is φ = 129206449008.

The previous prime is 231026755403. The next prime is 231026755409. The reversal of 231026755407 is 704557620132.

231026755407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231026755407 - 2² = 231026755403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231026755403) 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 23 ways as a sum of consecutive naturals, for example, 16712353 + ... + 16726170.

It is an arithmetic number, because the mean of its divisors is an integer number (15247966944).

Almost surely, 2^231026755407 is an apocalyptic number.

231026755407 is a deficient number, since it is larger than the sum of its proper divisors (134924451249).

231026755407 is a wasteful number, since it uses less digits than its factorization.

231026755407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33438587 (or 33438580 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 231026755407 in words is "two hundred thirty-one billion, twenty-six million, seven hundred fifty-five thousand, four hundred seven".