31023221111230 has 32 divisors (see below), whose sum is σ = 56857439674080. Its totient is φ = 12184102669440.

The previous prime is 31023221111189. The next prime is 31023221111231. The reversal of 31023221111230 is 3211112232013.

It is a super-2 number, since 2×31023221111230² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023221111231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31538589 + ... + 32507368.

It is an arithmetic number, because the mean of its divisors is an integer number (1776794989815).

Almost surely, 2^{31023221111230} is an apocalyptic number.

31023221111230 is a deficient number, since it is larger than the sum of its proper divisors (25834218562850).

31023221111230 is a wasteful number, since it uses less digits than its factorization.

31023221111230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64046844.

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

Adding to 31023221111230 its reverse (3211112232013), we get a palindrome (34234333343243).

The spelling of 31023221111230 in words is "thirty-one trillion, twenty-three billion, two hundred twenty-one million, one hundred eleven thousand, two hundred thirty".