501312552023 has 4 divisors (see below), whose sum is σ = 504314423760. Its totient is φ = 498310680288.

The previous prime is 501312552019. The next prime is 501312552031. The reversal of 501312552023 is 320255213105.

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 501312552023 - 2² = 501312552019 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 (501312551023) 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, 1500935618 + ... + 1500935951.

It is an arithmetic number, because the mean of its divisors is an integer number (126078605940).

Almost surely, 2^501312552023 is an apocalyptic number.

501312552023 is a deficient number, since it is larger than the sum of its proper divisors (3001871737).

501312552023 is a wasteful number, since it uses less digits than its factorization.

501312552023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001871736.

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 501312552023 its reverse (320255213105), we get a palindrome (821567765128).

The spelling of 501312552023 in words is "five hundred one billion, three hundred twelve million, five hundred fifty-two thousand, twenty-three".