402312130023 has 4 divisors (see below), whose sum is σ = 536416173368. Its totient is φ = 268208086680.

The previous prime is 402312129977. The next prime is 402312130063. The reversal of 402312130023 is 320031213204.

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

It is not a de Polignac number, because 402312130023 - 2¹⁶ = 402312064487 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 (402312130063) 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, 67052021668 + ... + 67052021673.

It is an arithmetic number, because the mean of its divisors is an integer number (134104043342).

Almost surely, 2^402312130023 is an apocalyptic number.

402312130023 is a deficient number, since it is larger than the sum of its proper divisors (134104043345).

402312130023 is a wasteful number, since it uses less digits than its factorization.

402312130023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134104043344.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 402312130023 its reverse (320031213204), we get a palindrome (722343343227).

The spelling of 402312130023 in words is "four hundred two billion, three hundred twelve million, one hundred thirty thousand, twenty-three".