23145122435 has 4 divisors (see below), whose sum is σ = 27774146928. Its totient is φ = 18516097944.

The previous prime is 23145122431. The next prime is 23145122437. The reversal of 23145122435 is 53422154132.

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 23145122435 - 2² = 23145122431 is a prime.

It is a super-2 number, since 2×23145122435² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23145122431) 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, 2314512239 + ... + 2314512248.

It is an arithmetic number, because the mean of its divisors is an integer number (6943536732).

Almost surely, 2^23145122435 is an apocalyptic number.

23145122435 is a deficient number, since it is larger than the sum of its proper divisors (4629024493).

23145122435 is an equidigital number, since it uses as much as digits as its factorization.

23145122435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4629024492.

The product of its digits is 28800, while the sum is 32.

Adding to 23145122435 its reverse (53422154132), we get a palindrome (76567276567).

The spelling of 23145122435 in words is "twenty-three billion, one hundred forty-five million, one hundred twenty-two thousand, four hundred thirty-five".