23145330425 has 24 divisors (see below), whose sum is σ = 34729670016. Its totient is φ = 14937488640.

The previous prime is 23145330419. The next prime is 23145330443. The reversal of 23145330425 is 52403354132.

It is not a de Polignac number, because 23145330425 - 2⁶ = 23145330361 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23145330391 and 23145330400.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3886997 + ... + 3892946.

It is an arithmetic number, because the mean of its divisors is an integer number (1447069584).

Almost surely, 2^23145330425 is an apocalyptic number.

23145330425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23145330425 is a deficient number, since it is larger than the sum of its proper divisors (11584339591).

23145330425 is a wasteful number, since it uses less digits than its factorization.

23145330425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7779977 (or 7779972 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 23145330425 its reverse (52403354132), we get a palindrome (75548684557).

The spelling of 23145330425 in words is "twenty-three billion, one hundred forty-five million, three hundred thirty thousand, four hundred twenty-five".