31233223222113 has 24 divisors (see below), whose sum is σ = 45776844629824. Its totient is φ = 18928178295840.

The previous prime is 31233223222109. The next prime is 31233223222121. The reversal of 31233223222113 is 31122232233213.

It is not a de Polignac number, because 31233223222113 - 2² = 31233223222109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31233223222133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4209756 + ... + 8954802.

Almost surely, 2^{31233223222113} is an apocalyptic number.

31233223222113 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31233223222113 is a deficient number, since it is larger than the sum of its proper divisors (14543621407711).

31233223222113 is a wasteful number, since it uses less digits than its factorization.

31233223222113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4763205 (or 4763194 counting only the distinct ones).

The product of its digits is 15552, while the sum is 30.

Adding to 31233223222113 its reverse (31122232233213), we get a palindrome (62355455455326).

The spelling of 31233223222113 in words is "thirty-one trillion, two hundred thirty-three billion, two hundred twenty-three million, two hundred twenty-two thousand, one hundred thirteen".