31102200023 has 4 divisors (see below), whose sum is σ = 31102556760. Its totient is φ = 31101843288.

The previous prime is 31102200001. The next prime is 31102200049. The reversal of 31102200023 is 32000220113.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 31102200023 - 2⁸ = 31102199767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31102199980 and 31102200007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31102202023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49133 + ... + 254201.

It is an arithmetic number, because the mean of its divisors is an integer number (7775639190).

Almost surely, 2^31102200023 is an apocalyptic number.

31102200023 is a deficient number, since it is larger than the sum of its proper divisors (356737).

31102200023 is a wasteful number, since it uses less digits than its factorization.

31102200023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356736.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 31102200023 its reverse (32000220113), we get a palindrome (63102420136).

The spelling of 31102200023 in words is "thirty-one billion, one hundred two million, two hundred thousand, twenty-three".