20313131133233 has 8 divisors (see below), whose sum is σ = 21391568352000. Its totient is φ = 19235626419888.

The previous prime is 20313131133227. The next prime is 20313131133241. The reversal of 20313131133233 is 33233113131302.

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 20313131133233 - 2¹⁰ = 20313131132209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20313131133196 and 20313131133205.

It is not an unprimeable number, because it can be changed into a prime (20313131133223) 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, 233081633 + ... + 233168766.

It is an arithmetic number, because the mean of its divisors is an integer number (2673946044000).

Almost surely, 2^{20313131133233} is an apocalyptic number.

It is an amenable number.

20313131133233 is a deficient number, since it is larger than the sum of its proper divisors (1078437218767).

20313131133233 is a wasteful number, since it uses less digits than its factorization.

20313131133233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466252711.

The product of its (nonzero) digits is 8748, while the sum is 29.

Adding to 20313131133233 its reverse (33233113131302), we get a palindrome (53546244264535).

The spelling of 20313131133233 in words is "twenty trillion, three hundred thirteen billion, one hundred thirty-one million, one hundred thirty-three thousand, two hundred thirty-three".