23112325551 has 8 divisors (see below), whose sum is σ = 35218781824. Its totient is φ = 13207043160.

The previous prime is 23112325531. The next prime is 23112325627. The reversal of 23112325551 is 15552321132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23112325551 - 2⁵ = 23112325519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23112325531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550293445 + ... + 550293486.

It is an arithmetic number, because the mean of its divisors is an integer number (4402347728).

Almost surely, 2^23112325551 is an apocalyptic number.

23112325551 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23112325551 is a deficient number, since it is larger than the sum of its proper divisors (12106456273).

23112325551 is a wasteful number, since it uses less digits than its factorization.

23112325551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100586941.

The product of its digits is 9000, while the sum is 30.

Adding to 23112325551 its reverse (15552321132), we get a palindrome (38664646683).

The spelling of 23112325551 in words is "twenty-three billion, one hundred twelve million, three hundred twenty-five thousand, five hundred fifty-one".