131011013221001 has 4 divisors (see below), whose sum is σ = 131015995222932. Its totient is φ = 131006031219072.

The previous prime is 131011013220949. The next prime is 131011013221027. The reversal of 131011013221001 is 100122310110131.

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 41646113424400 + 89364899796601 = 6453380^2 + 9453301^2 .

It is a cyclic number.

It is not a de Polignac number, because 131011013221001 - 2⁴² = 126612966709897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131011013221091) 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, 2490961520 + ... + 2491014113.

It is an arithmetic number, because the mean of its divisors is an integer number (32753998805733).

Almost surely, 2^{131011013221001} is an apocalyptic number.

It is an amenable number.

131011013221001 is a deficient number, since it is larger than the sum of its proper divisors (4982001931).

131011013221001 is an equidigital number, since it uses as much as digits as its factorization.

131011013221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4982001930.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 131011013221001 its reverse (100122310110131), we get a palindrome (231133323331132).

The spelling of 131011013221001 in words is "one hundred thirty-one trillion, eleven billion, thirteen million, two hundred twenty-one thousand, one".