231213320332 has 6 divisors (see below), whose sum is σ = 404623310588. Its totient is φ = 115606660164.

The previous prime is 231213320329. The next prime is 231213320347. The reversal of 231213320332 is 233023312132.

It is a junction number, because it is equal to n+sod(n) for n = 231213320297 and 231213320306.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28901665038 + ... + 28901665045.

Almost surely, 2^231213320332 is an apocalyptic number.

It is an amenable number.

231213320332 is a deficient number, since it is larger than the sum of its proper divisors (173409990256).

231213320332 is a wasteful number, since it uses less digits than its factorization.

231213320332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57803330087 (or 57803330085 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 231213320332 its reverse (233023312132), we get a palindrome (464236632464).

The spelling of 231213320332 in words is "two hundred thirty-one billion, two hundred thirteen million, three hundred twenty thousand, three hundred thirty-two".