231032020330 has 16 divisors (see below), whose sum is σ = 416850144480. Its totient is φ = 92192250832.

The previous prime is 231032020291. The next prime is 231032020337. The reversal of 231032020330 is 33020230132.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 231032020298 and 231032020307.

It is not an unprimeable number, because it can be changed into a prime (231032020337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27565264 + ... + 27573643.

It is an arithmetic number, because the mean of its divisors is an integer number (26053134030).

Almost surely, 2^231032020330 is an apocalyptic number.

231032020330 is a deficient number, since it is larger than the sum of its proper divisors (185818124150).

231032020330 is a wasteful number, since it uses less digits than its factorization.

231032020330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55139333.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 231032020330 its reverse (33020230132), we get a palindrome (264052250462).

The spelling of 231032020330 in words is "two hundred thirty-one billion, thirty-two million, twenty thousand, three hundred thirty".