23144353312525 has 12 divisors (see below), whose sum is σ = 28707634683072. Its totient is φ = 18509910665840.

The previous prime is 23144353312441. The next prime is 23144353312529. The reversal of 23144353312525 is 52521335344132.

It is not a de Polignac number, because 23144353312525 - 2²¹ = 23144351215373 is a prime.

It is a super-2 number, since 2×23144353312525² (a number of 28 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 (23144353312529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139214869 + ... + 139381018.

It is an arithmetic number, because the mean of its divisors is an integer number (2392302890256).

Almost surely, 2^{23144353312525} is an apocalyptic number.

23144353312525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23144353312525 is a deficient number, since it is larger than the sum of its proper divisors (5563281370547).

23144353312525 is a wasteful number, since it uses less digits than its factorization.

23144353312525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278599220 (or 278599215 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 43.

Adding to 23144353312525 its reverse (52521335344132), we get a palindrome (75665688656657).

The spelling of 23144353312525 in words is "twenty-three trillion, one hundred forty-four billion, three hundred fifty-three million, three hundred twelve thousand, five hundred twenty-five".