23157211127 has 4 divisors (see below), whose sum is σ = 23783081736. Its totient is φ = 22531340520.

The previous prime is 23157211111. The next prime is 23157211151. The reversal of 23157211127 is 72111275132.

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 23157211127 - 2⁴ = 23157211111 is a prime.

It is a super-2 number, since 2×23157211127² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23157211093 and 23157211102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23157211157) 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, 312935249 + ... + 312935322.

It is an arithmetic number, because the mean of its divisors is an integer number (5945770434).

Almost surely, 2^23157211127 is an apocalyptic number.

23157211127 is a deficient number, since it is larger than the sum of its proper divisors (625870609).

23157211127 is an equidigital number, since it uses as much as digits as its factorization.

23157211127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625870608.

The product of its digits is 5880, while the sum is 32.

Adding to 23157211127 its reverse (72111275132), we get a palindrome (95268486259).

The spelling of 23157211127 in words is "twenty-three billion, one hundred fifty-seven million, two hundred eleven thousand, one hundred twenty-seven".