231330003231 has 32 divisors (see below), whose sum is σ = 320025333760. Its totient is φ = 148532608224.

The previous prime is 231330003209. The next prime is 231330003263. The reversal of 231330003231 is 132300033132.

It is not a de Polignac number, because 231330003231 - 2¹¹ = 231330001183 is a prime.

It is a super-2 number, since 2×231330003231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231330003198 and 231330003207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231330003271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8005896 + ... + 8034738.

It is an arithmetic number, because the mean of its divisors is an integer number (10000791680).

Almost surely, 2^231330003231 is an apocalyptic number.

231330003231 is a deficient number, since it is larger than the sum of its proper divisors (88695330529).

231330003231 is a wasteful number, since it uses less digits than its factorization.

231330003231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29755.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 231330003231 its reverse (132300033132), we get a palindrome (363630036363).

The spelling of 231330003231 in words is "two hundred thirty-one billion, three hundred thirty million, three thousand, two hundred thirty-one".