20131233323331 has 16 divisors (see below), whose sum is σ = 29005042935456. Its totient is φ = 12346169865216.

The previous prime is 20131233323309. The next prime is 20131233323363. The reversal of 20131233323331 is 13332333213102.

It is not a de Polignac number, because 20131233323331 - 2¹⁰ = 20131233322307 is a prime.

It is a super-2 number, since 2×20131233323331² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20131233323231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 880851150 + ... + 880874003.

It is an arithmetic number, because the mean of its divisors is an integer number (1812815183466).

Almost surely, 2^{20131233323331} is an apocalyptic number.

20131233323331 is a deficient number, since it is larger than the sum of its proper divisors (8873809612125).

20131233323331 is a wasteful number, since it uses less digits than its factorization.

20131233323331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761725462.

The product of its (nonzero) digits is 17496, while the sum is 30.

Adding to 20131233323331 its reverse (13332333213102), we get a palindrome (33463566536433).

The spelling of 20131233323331 in words is "twenty trillion, one hundred thirty-one billion, two hundred thirty-three million, three hundred twenty-three thousand, three hundred thirty-one".