231531424013030 has 32 divisors (see below), whose sum is σ = 416919718978560. Its totient is φ = 92576314406880.

The previous prime is 231531424012963. The next prime is 231531424013047. The reversal of 231531424013030 is 30310424135132.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 1633803437 + ... + 1633945143.

It is an arithmetic number, because the mean of its divisors is an integer number (13028741218080).

Almost surely, 2^{231531424013030} is an apocalyptic number.

231531424013030 is a deficient number, since it is larger than the sum of its proper divisors (185388294965530).

231531424013030 is a wasteful number, since it uses less digits than its factorization.

231531424013030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204524.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 231531424013030 its reverse (30310424135132), we get a palindrome (261841848148162).

It can be divided in two parts, 23153142 and 4013030, that added together give a palindrome (27166172).

The spelling of 231531424013030 in words is "two hundred thirty-one trillion, five hundred thirty-one billion, four hundred twenty-four million, thirteen thousand, thirty".