31112101223 has 8 divisors (see below), whose sum is σ = 35595724800. Its totient is φ = 26638237080.

The previous prime is 31112101201. The next prime is 31112101249. The reversal of 31112101223 is 32210121113.

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

It is not a de Polignac number, because 31112101223 - 2⁸ = 31112100967 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 (31112101723) 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, 2433023 + ... + 2445776.

It is an arithmetic number, because the mean of its divisors is an integer number (4449465600).

Almost surely, 2^31112101223 is an apocalyptic number.

31112101223 is a deficient number, since it is larger than the sum of its proper divisors (4483623577).

31112101223 is an equidigital number, since it uses as much as digits as its factorization.

31112101223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4879717.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 31112101223 its reverse (32210121113), we get a palindrome (63322222336).

The spelling of 31112101223 in words is "thirty-one billion, one hundred twelve million, one hundred one thousand, two hundred twenty-three".