13033431238 has 8 divisors (see below), whose sum is σ = 19556876160. Its totient is φ = 6514472520.

The previous prime is 13033431233. The next prime is 13033431239. The reversal of 13033431238 is 83213433031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13033431233) 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, 1114278 + ... + 1125913.

It is an arithmetic number, because the mean of its divisors is an integer number (2444609520).

Almost surely, 2^13033431238 is an apocalyptic number.

13033431238 is a deficient number, since it is larger than the sum of its proper divisors (6523444922).

13033431238 is a wasteful number, since it uses less digits than its factorization.

13033431238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243102.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 13033431238 its reverse (83213433031), we get a palindrome (96246864269).

The spelling of 13033431238 in words is "thirteen billion, thirty-three million, four hundred thirty-one thousand, two hundred thirty-eight".