20131321130233 has 8 divisors (see below), whose sum is σ = 20333185433600. Its totient is φ = 19929580184448.

The previous prime is 20131321130213. The next prime is 20131321130269. The reversal of 20131321130233 is 33203112313102.

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

It is a cyclic number.

It is not a de Polignac number, because 20131321130233 - 2³⁷ = 19993882176761 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20131321130198 and 20131321130207.

It is not an unprimeable number, because it can be changed into a prime (20131321130213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30511353 + ... + 31164166.

It is an arithmetic number, because the mean of its divisors is an integer number (2541648179200).

Almost surely, 2^{20131321130233} is an apocalyptic number.

It is an amenable number.

20131321130233 is a deficient number, since it is larger than the sum of its proper divisors (201864303367).

20131321130233 is a wasteful number, since it uses less digits than its factorization.

20131321130233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61678791.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 20131321130233 its reverse (33203112313102), we get a palindrome (53334433443335).

The spelling of 20131321130233 in words is "twenty trillion, one hundred thirty-one billion, three hundred twenty-one million, one hundred thirty thousand, two hundred thirty-three".