31112133310223 has 48 divisors (see below), whose sum is σ = 36651943692000. Its totient is φ = 26330656746240.

The previous prime is 31112133310177. The next prime is 31112133310249. The reversal of 31112133310223 is 32201333121113.

It is not a de Polignac number, because 31112133310223 - 2²⁸ = 31111864874767 is a prime.

It is a super-2 number, since 2×31112133310223² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31112133310192 and 31112133310201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31112133310253) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4478495636 + ... + 4478502582.

It is an arithmetic number, because the mean of its divisors is an integer number (763582160250).

Almost surely, 2^{31112133310223} is an apocalyptic number.

31112133310223 is a deficient number, since it is larger than the sum of its proper divisors (5539810381777).

31112133310223 is a wasteful number, since it uses less digits than its factorization.

31112133310223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10680 (or 10673 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 31112133310223 its reverse (32201333121113), we get a palindrome (63313466431336).

The spelling of 31112133310223 in words is "thirty-one trillion, one hundred twelve billion, one hundred thirty-three million, three hundred ten thousand, two hundred twenty-three".