31023013331223 has 20 divisors (see below), whose sum is σ = 47941055087640. Its totient is φ = 19968836165712.

The previous prime is 31023013331197. The next prime is 31023013331249. The reversal of 31023013331223 is 32213331032013.

31023013331223 is a `hidden beast` number, since 3 + 1 + 0 + 2 + 301 + 3 + 331 + 2 + 23 = 666.

It is an interprime number because it is at equal distance from previous prime (31023013331197) and next prime (31023013331249).

It is not a de Polignac number, because 31023013331223 - 2³³ = 31014423396631 is a prime.

It is a super-2 number, since 2×31023013331223² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023013331293) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6603448765 + ... + 6603453462.

It is an arithmetic number, because the mean of its divisors is an integer number (2397052754382).

Almost surely, 2^{31023013331223} is an apocalyptic number.

31023013331223 is a deficient number, since it is larger than the sum of its proper divisors (16918041756417).

31023013331223 is a wasteful number, since it uses less digits than its factorization.

31023013331223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13206902268 (or 13206902259 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 31023013331223 its reverse (32213331032013), we get a palindrome (63236344363236).

The spelling of 31023013331223 in words is "thirty-one trillion, twenty-three billion, thirteen million, three hundred thirty-one thousand, two hundred twenty-three".