31312011102223 has 8 divisors (see below), whose sum is σ = 31523544580016. Its totient is φ = 31100714640000.

The previous prime is 31312011102107. The next prime is 31312011102227. The reversal of 31312011102223 is 32220111021313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31312011102223 is a prime.

It is a super-2 number, since 2×31312011102223² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31312011102194 and 31312011102203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31312011102227) 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, 58988778 + ... + 59517223.

It is an arithmetic number, because the mean of its divisors is an integer number (3940443072502).

Almost surely, 2^{31312011102223} is an apocalyptic number.

31312011102223 is a deficient number, since it is larger than the sum of its proper divisors (211533477793).

31312011102223 is a wasteful number, since it uses less digits than its factorization.

31312011102223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118507785.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 31312011102223 its reverse (32220111021313), we get a palindrome (63532122123536).

The spelling of 31312011102223 in words is "thirty-one trillion, three hundred twelve billion, eleven million, one hundred two thousand, two hundred twenty-three".