31113300223 has 4 divisors (see below), whose sum is σ = 32750842360. Its totient is φ = 29475758088.

The previous prime is 31113300199. The next prime is 31113300263. The reversal of 31113300223 is 32200331113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32200331113 = 293 ⋅109898741.

It is a cyclic number.

It is not a de Polignac number, because 31113300223 - 2¹⁷ = 31113169151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 1637542117 = 31113300223 / (3 + 1 + 1 + 1 + 3 + 3 + 0 + 0 + 2 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31113300223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31113300263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 818771040 + ... + 818771077.

It is an arithmetic number, because the mean of its divisors is an integer number (8187710590).

Almost surely, 2^31113300223 is an apocalyptic number.

31113300223 is a deficient number, since it is larger than the sum of its proper divisors (1637542137).

31113300223 is a wasteful number, since it uses less digits than its factorization.

31113300223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637542136.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 31113300223 its reverse (32200331113), we get a palindrome (63313631336).

The spelling of 31113300223 in words is "thirty-one billion, one hundred thirteen million, three hundred thousand, two hundred twenty-three".