23111505512025 has 96 divisors (see below), whose sum is σ = 43954806712320. Its totient is φ = 10496359864320.

The previous prime is 23111505512023. The next prime is 23111505512077. The reversal of 23111505512025 is 52021550511132.

It is not a de Polignac number, because 23111505512025 - 2¹ = 23111505512023 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23111505512023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 165548302 + ... + 165687848.

It is an arithmetic number, because the mean of its divisors is an integer number (457862569920).

Almost surely, 2^{23111505512025} is an apocalyptic number.

23111505512025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23111505512025 is a deficient number, since it is larger than the sum of its proper divisors (20843301200295).

23111505512025 is a wasteful number, since it uses less digits than its factorization.

23111505512025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141623 (or 141618 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 33.

The spelling of 23111505512025 in words is "twenty-three trillion, one hundred eleven billion, five hundred five million, five hundred twelve thousand, twenty-five".