20001301331 has 24 divisors (see below), whose sum is σ = 23007616800. Its totient is φ = 17341758720.

The previous prime is 20001301301. The next prime is 20001301337. The reversal of 20001301331 is 13310310002.

It is not a de Polignac number, because 20001301331 - 2²² = 19997107027 is a prime.

It is a super-2 number, since 2×20001301331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001301337) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 960971 + ... + 981563.

It is an arithmetic number, because the mean of its divisors is an integer number (958650700).

Almost surely, 2^20001301331 is an apocalyptic number.

20001301331 is a deficient number, since it is larger than the sum of its proper divisors (3006315469).

20001301331 is a wasteful number, since it uses less digits than its factorization.

20001301331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20987 (or 20976 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 20001301331 its reverse (13310310002), we get a palindrome (33311611333).

The spelling of 20001301331 in words is "twenty billion, one million, three hundred one thousand, three hundred thirty-one".