23144105251 has 4 divisors (see below), whose sum is σ = 23145634512. Its totient is φ = 23142575992.

The previous prime is 23144105239. The next prime is 23144105273. The reversal of 23144105251 is 15250144132.

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 23144105251 - 2⁷ = 23144105123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23144105291) 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, 741700 + ... + 772273.

It is an arithmetic number, because the mean of its divisors is an integer number (5786408628).

Almost surely, 2^23144105251 is an apocalyptic number.

23144105251 is a deficient number, since it is larger than the sum of its proper divisors (1529261).

23144105251 is a wasteful number, since it uses less digits than its factorization.

23144105251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529260.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 23144105251 its reverse (15250144132), we get a palindrome (38394249383).

The spelling of 23144105251 in words is "twenty-three billion, one hundred forty-four million, one hundred five thousand, two hundred fifty-one".