131301122020001 has 4 divisors (see below), whose sum is σ = 132060088043412. Its totient is φ = 130542155996592.

The previous prime is 131301122019941. The next prime is 131301122020073. The reversal of 131301122020001 is 100020221103131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62213839380625 + 69087282639376 = 7887575^2 + 8311876^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131301122020001 is a prime.

It is a super-2 number, since 2×131301122020001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131301122025001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379483011446 + ... + 379483011791.

It is an arithmetic number, because the mean of its divisors is an integer number (33015022010853).

Almost surely, 2^{131301122020001} is an apocalyptic number.

It is an amenable number.

131301122020001 is a deficient number, since it is larger than the sum of its proper divisors (758966023411).

131301122020001 is an equidigital number, since it uses as much as digits as its factorization.

131301122020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758966023410.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 131301122020001 its reverse (100020221103131), we get a palindrome (231321343123132).

The spelling of 131301122020001 in words is "one hundred thirty-one trillion, three hundred one billion, one hundred twenty-two million, twenty thousand, one".