23124120551 has 4 divisors (see below), whose sum is σ = 26427566352. Its totient is φ = 19820674752.

The previous prime is 23124120527. The next prime is 23124120559. The reversal of 23124120551 is 15502142132.

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 23124120551 - 2¹⁰ = 23124119527 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23124120551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23124120559) 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, 1651722890 + ... + 1651722903.

It is an arithmetic number, because the mean of its divisors is an integer number (6606891588).

Almost surely, 2^23124120551 is an apocalyptic number.

23124120551 is a deficient number, since it is larger than the sum of its proper divisors (3303445801).

23124120551 is an equidigital number, since it uses as much as digits as its factorization.

23124120551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3303445800.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 23124120551 its reverse (15502142132), we get a palindrome (38626262683).

The spelling of 23124120551 in words is "twenty-three billion, one hundred twenty-four million, one hundred twenty thousand, five hundred fifty-one".