20131301320233 has 16 divisors (see below), whose sum is σ = 26940977806080. Its totient is φ = 13371320982096.

The previous prime is 20131301320217. The next prime is 20131301320267. The reversal of 20131301320233 is 33202310313102.

It is not a de Polignac number, because 20131301320233 - 2⁴ = 20131301320217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20131301320633) 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, 8271535 + ... + 10425012.

It is an arithmetic number, because the mean of its divisors is an integer number (1683811112880).

Almost surely, 2^{20131301320233} is an apocalyptic number.

It is an amenable number.

20131301320233 is a deficient number, since it is larger than the sum of its proper divisors (6809676485847).

20131301320233 is a wasteful number, since it uses less digits than its factorization.

20131301320233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18697876.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 20131301320233 its reverse (33202310313102), we get a palindrome (53333611633335).

The spelling of 20131301320233 in words is "twenty trillion, one hundred thirty-one billion, three hundred one million, three hundred twenty thousand, two hundred thirty-three".