31112302020223 has 4 divisors (see below), whose sum is σ = 31122277112160. Its totient is φ = 31102326928288.

The previous prime is 31112302020193. The next prime is 31112302020263. The reversal of 31112302020223 is 32202020321113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31112302020223 - 2³⁷ = 30974863066751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31112302020194 and 31112302020203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31112302020263) 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, 4987541290 + ... + 4987547527.

It is an arithmetic number, because the mean of its divisors is an integer number (7780569278040).

Almost surely, 2^{31112302020223} is an apocalyptic number.

31112302020223 is a deficient number, since it is larger than the sum of its proper divisors (9975091937).

31112302020223 is an equidigital number, since it uses as much as digits as its factorization.

31112302020223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9975091936.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31112302020223 its reverse (32202020321113), we get a palindrome (63314322341336).

The spelling of 31112302020223 in words is "thirty-one trillion, one hundred twelve billion, three hundred two million, twenty thousand, two hundred twenty-three".