231029695973 has 4 divisors (see below), whose sum is σ = 231033002508. Its totient is φ = 231026389440.

The previous prime is 231029695933. The next prime is 231029695997. The reversal of 231029695973 is 379596920132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 149415490849 + 81614205124 = 386543^2 + 285682^2 .

It is a cyclic number.

It is not a de Polignac number, because 231029695973 - 2²⁰ = 231028647397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231029695933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1546148 + ... + 1688973.

It is an arithmetic number, because the mean of its divisors is an integer number (57758250627).

Almost surely, 2^231029695973 is an apocalyptic number.

It is an amenable number.

231029695973 is a deficient number, since it is larger than the sum of its proper divisors (3306535).

231029695973 is an equidigital number, since it uses as much as digits as its factorization.

231029695973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3306534.

The product of its (nonzero) digits is 5511240, while the sum is 56.

The spelling of 231029695973 in words is "two hundred thirty-one billion, twenty-nine million, six hundred ninety-five thousand, nine hundred seventy-three".