231403322 has 16 divisors (see below), whose sum is σ = 365789952. Its totient is φ = 109573200.

The previous prime is 231403301. The next prime is 231403349. The reversal of 231403322 is 223304132.

It is a junction number, because it is equal to n+sod(n) for n = 231403294 and 231403303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20258 + ... + 29549.

It is an arithmetic number, because the mean of its divisors is an integer number (22861872).

Almost surely, 2^231403322 is an apocalyptic number.

231403322 is a deficient number, since it is larger than the sum of its proper divisors (134386630).

231403322 is a wasteful number, since it uses less digits than its factorization.

231403322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49933.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 231403322 is about 15211.9466867328. The cubic root of 231403322 is about 613.9361359161.

Adding to 231403322 its reverse (223304132), we get a palindrome (454707454).

It can be divided in two parts, 23140 and 3322, that added together give a palindrome (26462).

The spelling of 231403322 in words is "two hundred thirty-one million, four hundred three thousand, three hundred twenty-two".