231432030031 has 4 divisors (see below), whose sum is σ = 231433280064. Its totient is φ = 231430780000.

The previous prime is 231432030029. The next prime is 231432030043. The reversal of 231432030031 is 130030234132.

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

It is a cyclic number.

It is not a de Polignac number, because 231432030031 - 2¹ = 231432030029 is a prime.

It is a super-2 number, since 2×231432030031² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231432029984 and 231432030011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231432030061) 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, 286015 + ... + 738016.

It is an arithmetic number, because the mean of its divisors is an integer number (57858320016).

Almost surely, 2^231432030031 is an apocalyptic number.

231432030031 is a deficient number, since it is larger than the sum of its proper divisors (1250033).

231432030031 is a wasteful number, since it uses less digits than its factorization.

231432030031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250032.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 231432030031 its reverse (130030234132), we get a palindrome (361462264163).

The spelling of 231432030031 in words is "two hundred thirty-one billion, four hundred thirty-two million, thirty thousand, thirty-one".