213667623723 has 4 divisors (see below), whose sum is σ = 284890164968. Its totient is φ = 142445082480.

The previous prime is 213667623707. The next prime is 213667623739. The reversal of 213667623723 is 327326766312.

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

It is an interprime number because it is at equal distance from previous prime (213667623707) and next prime (213667623739).

It is not a de Polignac number, because 213667623723 - 2⁴ = 213667623707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213667623703) 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, 35611270618 + ... + 35611270623.

It is an arithmetic number, because the mean of its divisors is an integer number (71222541242).

Almost surely, 2^213667623723 is an apocalyptic number.

213667623723 is a deficient number, since it is larger than the sum of its proper divisors (71222541245).

213667623723 is an equidigital number, since it uses as much as digits as its factorization.

213667623723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71222541244.

The product of its digits is 2286144, while the sum is 48.

The spelling of 213667623723 in words is "two hundred thirteen billion, six hundred sixty-seven million, six hundred twenty-three thousand, seven hundred twenty-three".