31112122320223 has 32 divisors (see below), whose sum is σ = 37486826071040. Its totient is φ = 25224372311040.

The previous prime is 31112122320197. The next prime is 31112122320247. The reversal of 31112122320223 is 32202322121113.

It is not a de Polignac number, because 31112122320223 - 2¹³ = 31112122312031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31112122321223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 319243183 + ... + 319340623.

It is an arithmetic number, because the mean of its divisors is an integer number (1171463314720).

Almost surely, 2^{31112122320223} is an apocalyptic number.

31112122320223 is a deficient number, since it is larger than the sum of its proper divisors (6374703750817).

31112122320223 is a wasteful number, since it uses less digits than its factorization.

31112122320223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101207.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 31112122320223 its reverse (32202322121113), we get a palindrome (63314444441336).

The spelling of 31112122320223 in words is "thirty-one trillion, one hundred twelve billion, one hundred twenty-two million, three hundred twenty thousand, two hundred twenty-three".