23135002331 has 4 divisors (see below), whose sum is σ = 26440002672. Its totient is φ = 19830001992.

The previous prime is 23135002327. The next prime is 23135002333. The reversal of 23135002331 is 13320053132.

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 23135002331 - 2² = 23135002327 is a prime.

It is a super-2 number, since 2×23135002331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23135002297 and 23135002306.

It is not an unprimeable number, because it can be changed into a prime (23135002333) 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, 1652500160 + ... + 1652500173.

It is an arithmetic number, because the mean of its divisors is an integer number (6610000668).

Almost surely, 2^23135002331 is an apocalyptic number.

23135002331 is a deficient number, since it is larger than the sum of its proper divisors (3305000341).

23135002331 is an equidigital number, since it uses as much as digits as its factorization.

23135002331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3305000340.

The product of its (nonzero) digits is 1620, while the sum is 23.

Adding to 23135002331 its reverse (13320053132), we get a palindrome (36455055463).

The spelling of 23135002331 in words is "twenty-three billion, one hundred thirty-five million, two thousand, three hundred thirty-one".