131202321001 has 4 divisors (see below), whose sum is σ = 131225172352. Its totient is φ = 131179469652.

The previous prime is 131202320983. The next prime is 131202321007. The reversal of 131202321001 is 100123202131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131202321001 - 2¹⁵ = 131202288233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131202321007) 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, 11417061 + ... + 11428546.

It is an arithmetic number, because the mean of its divisors is an integer number (32806293088).

Almost surely, 2^131202321001 is an apocalyptic number.

It is an amenable number.

131202321001 is a deficient number, since it is larger than the sum of its proper divisors (22851351).

131202321001 is an equidigital number, since it uses as much as digits as its factorization.

131202321001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22851350.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 131202321001 its reverse (100123202131), we get a palindrome (231325523132).

The spelling of 131202321001 in words is "one hundred thirty-one billion, two hundred two million, three hundred twenty-one thousand, one".