312202012223023 has 4 divisors (see below), whose sum is σ = 336217551624808. Its totient is φ = 288186472821240.

The previous prime is 312202012222973. The next prime is 312202012223119. The reversal of 312202012223023 is 320322210202213.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312202012223023 is a prime.

It is a super-2 number, since 2×312202012223023² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312202012227023) 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, 12007769700873 + ... + 12007769700898.

It is an arithmetic number, because the mean of its divisors is an integer number (84054387906202).

Almost surely, 2^{312202012223023} is an apocalyptic number.

312202012223023 is a deficient number, since it is larger than the sum of its proper divisors (24015539401785).

312202012223023 is a wasteful number, since it uses less digits than its factorization.

312202012223023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24015539401784.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 312202012223023 its reverse (320322210202213), we get a palindrome (632524222425236).

The spelling of 312202012223023 in words is "three hundred twelve trillion, two hundred two billion, twelve million, two hundred twenty-three thousand, twenty-three".