31213232303 has 8 divisors (see below), whose sum is σ = 34106903040. Its totient is φ = 28328912280.

The previous prime is 31213232299. The next prime is 31213232363. The reversal of 31213232303 is 30323231213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31213232303 - 2² = 31213232299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31213232363) 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, 2330693 + ... + 2344046.

It is an arithmetic number, because the mean of its divisors is an integer number (4263362880).

Almost surely, 2^31213232303 is an apocalyptic number.

31213232303 is a deficient number, since it is larger than the sum of its proper divisors (2893670737).

31213232303 is a wasteful number, since it uses less digits than its factorization.

31213232303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4675357.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 31213232303 its reverse (30323231213), we get a palindrome (61536463516).

The spelling of 31213232303 in words is "thirty-one billion, two hundred thirteen million, two hundred thirty-two thousand, three hundred three".