23216171351 has 4 divisors (see below), whose sum is σ = 23248461600. Its totient is φ = 23183881104.

The previous prime is 23216171347. The next prime is 23216171399. The reversal of 23216171351 is 15317161232.

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 23216171351 - 2² = 23216171347 is a prime.

It is a super-2 number, since 2×23216171351² (a number of 22 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 (23216171051) 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, 16144046 + ... + 16145483.

It is an arithmetic number, because the mean of its divisors is an integer number (5812115400).

Almost surely, 2^23216171351 is an apocalyptic number.

23216171351 is a deficient number, since it is larger than the sum of its proper divisors (32290249).

23216171351 is an equidigital number, since it uses as much as digits as its factorization.

23216171351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32290248.

The product of its digits is 7560, while the sum is 32.

The spelling of 23216171351 in words is "twenty-three billion, two hundred sixteen million, one hundred seventy-one thousand, three hundred fifty-one".