131202201211001 has 4 divisors (see below), whose sum is σ = 131505208604532. Its totient is φ = 130899193817472.

The previous prime is 131202201210989. The next prime is 131202201211021. The reversal of 131202201211001 is 100112102202131.

It is a happy number.

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 4199466547600 + 127002734663401 = 2049260^2 + 11269549^2 .

It is a cyclic number.

It is not a de Polignac number, because 131202201211001 - 2²² = 131202197016697 is a prime.

It is a super-2 number, since 2×131202201211001² (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 (131202201211021) 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, 151503696116 + ... + 151503696981.

It is an arithmetic number, because the mean of its divisors is an integer number (32876302151133).

Almost surely, 2^{131202201211001} is an apocalyptic number.

It is an amenable number.

131202201211001 is a deficient number, since it is larger than the sum of its proper divisors (303007393531).

131202201211001 is an equidigital number, since it uses as much as digits as its factorization.

131202201211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303007393530.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 131202201211001 its reverse (100112102202131), we get a palindrome (231314303413132).

The spelling of 131202201211001 in words is "one hundred thirty-one trillion, two hundred two billion, two hundred one million, two hundred eleven thousand, one".