23171710149 has 16 divisors (see below), whose sum is σ = 39232525440. Its totient is φ = 13240977120.

The previous prime is 23171710147. The next prime is 23171710171. The reversal of 23171710149 is 94101717132.

It is not a de Polignac number, because 23171710149 - 2¹ = 23171710147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23171710147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61300632 + ... + 61301009.

It is an arithmetic number, because the mean of its divisors is an integer number (2452032840).

Almost surely, 2^23171710149 is an apocalyptic number.

It is an amenable number.

23171710149 is a deficient number, since it is larger than the sum of its proper divisors (16060815291).

23171710149 is a wasteful number, since it uses less digits than its factorization.

23171710149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122601657 (or 122601651 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 36.

The spelling of 23171710149 in words is "twenty-three billion, one hundred seventy-one million, seven hundred ten thousand, one hundred forty-nine".