31233223313 has 8 divisors (see below), whose sum is σ = 32592984768. Its totient is φ = 29873611504.

The previous prime is 31233223309. The next prime is 31233223319. The reversal of 31233223313 is 31332233213.

It is a happy number.

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 31233223313 - 2² = 31233223309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31233223319) 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, 691406 + ... + 735192.

It is an arithmetic number, because the mean of its divisors is an integer number (4074123096).

Almost surely, 2^31233223313 is an apocalyptic number.

It is an amenable number.

31233223313 is a deficient number, since it is larger than the sum of its proper divisors (1359761455).

31233223313 is a wasteful number, since it uses less digits than its factorization.

31233223313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74823.

The product of its digits is 5832, while the sum is 26.

Adding to 31233223313 its reverse (31332233213), we get a palindrome (62565456526).

The spelling of 31233223313 in words is "thirty-one billion, two hundred thirty-three million, two hundred twenty-three thousand, three hundred thirteen".