23136135293 has 4 divisors (see below), whose sum is σ = 23143443840. Its totient is φ = 23128826748.

The previous prime is 23136135263. The next prime is 23136135299. The reversal of 23136135293 is 39253163132.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23136135293 - 2⁸ = 23136135037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23136135299) 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 3 ways as a sum of consecutive naturals, for example, 3649523 + ... + 3655856.

It is an arithmetic number, because the mean of its divisors is an integer number (5785860960).

Almost surely, 2^23136135293 is an apocalyptic number.

It is an amenable number.

23136135293 is a deficient number, since it is larger than the sum of its proper divisors (7308547).

23136135293 is an equidigital number, since it uses as much as digits as its factorization.

23136135293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7308546.

The product of its digits is 87480, while the sum is 38.

The spelling of 23136135293 in words is "twenty-three billion, one hundred thirty-six million, one hundred thirty-five thousand, two hundred ninety-three".