20000131321331 has 16 divisors (see below), whose sum is σ = 23405590656000. Its totient is φ = 16734997195488.

The previous prime is 20000131321309. The next prime is 20000131321333. The reversal of 20000131321331 is 13312313100002.

It is a cyclic number.

It is not a de Polignac number, because 20000131321331 - 2³⁴ = 19982951452147 is a prime.

It is a super-2 number, since 2×20000131321331² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20000131321333) 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, 135375191 + ... + 135522848.

It is an arithmetic number, because the mean of its divisors is an integer number (1462849416000).

Almost surely, 2^{20000131321331} is an apocalyptic number.

20000131321331 is a deficient number, since it is larger than the sum of its proper divisors (3405459334669).

20000131321331 is a wasteful number, since it uses less digits than its factorization.

20000131321331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270898298.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 20000131321331 its reverse (13312313100002), we get a palindrome (33312444421333).

The spelling of 20000131321331 in words is "twenty trillion, one hundred thirty-one million, three hundred twenty-one thousand, three hundred thirty-one".