235403999013 has 4 divisors (see below), whose sum is σ = 313871998688. Its totient is φ = 156935999340.

The previous prime is 235403999009. The next prime is 235403999027. The reversal of 235403999013 is 310999304532.

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 not a de Polignac number, because 235403999013 - 2² = 235403999009 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 (235403999113) 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, 39233999833 + ... + 39233999838.

It is an arithmetic number, because the mean of its divisors is an integer number (78467999672).

Almost surely, 2^235403999013 is an apocalyptic number.

It is an amenable number.

235403999013 is a deficient number, since it is larger than the sum of its proper divisors (78467999675).

235403999013 is an equidigital number, since it uses as much as digits as its factorization.

235403999013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78467999674.

The product of its (nonzero) digits is 787320, while the sum is 48.

The spelling of 235403999013 in words is "two hundred thirty-five billion, four hundred three million, nine hundred ninety-nine thousand, thirteen".