20133230232313 has 4 divisors (see below), whose sum is σ = 21963523889808. Its totient is φ = 18302936574820.

The previous prime is 20133230232299. The next prime is 20133230232373. The reversal of 20133230232313 is 31323203233102.

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 a de Polignac number, because none of the positive numbers 2^k-20133230232313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20133230232373) 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, 915146828731 + ... + 915146828752.

It is an arithmetic number, because the mean of its divisors is an integer number (5490880972452).

Almost surely, 2^{20133230232313} is an apocalyptic number.

It is an amenable number.

20133230232313 is a deficient number, since it is larger than the sum of its proper divisors (1830293657495).

20133230232313 is a wasteful number, since it uses less digits than its factorization.

20133230232313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830293657494.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 20133230232313 its reverse (31323203233102), we get a palindrome (51456433465415).

The spelling of 20133230232313 in words is "twenty trillion, one hundred thirty-three billion, two hundred thirty million, two hundred thirty-two thousand, three hundred thirteen".