231038188322 has 18 divisors (see below), whose sum is σ = 368160579603. Its totient is φ = 108718415232.

The previous prime is 231038188313. The next prime is 231038188333. The reversal of 231038188322 is 223881830132.

It can be written as a sum of positive squares in 5 ways, for example, as 196453719361 + 34584468961 = 443231^2 + 185969^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=339881.

It is a super-2 number, since 2×231038188322² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231038188322.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11545958 + ... + 11565950.

Almost surely, 2^231038188322 is an apocalyptic number.

231038188322 is a deficient number, since it is larger than the sum of its proper divisors (137122391281).

231038188322 is an frugal number, since it uses more digits than its factorization.

231038188322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40022 (or 20012 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 231038188322 in words is "two hundred thirty-one billion, thirty-eight million, one hundred eighty-eight thousand, three hundred twenty-two".