131202202001 has 4 divisors (see below), whose sum is σ = 141294679092. Its totient is φ = 121109724912.

The previous prime is 131202201967. The next prime is 131202202009. The reversal of 131202202001 is 100202202131.

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 18004272400 + 113197929601 = 134180^2 + 336449^2 .

It is a cyclic number.

It is not a de Polignac number, because 131202202001 - 2¹⁸ = 131201939857 is a prime.

It is a super-2 number, since 2×131202202001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131202202009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5046238526 + ... + 5046238551.

It is an arithmetic number, because the mean of its divisors is an integer number (35323669773).

Almost surely, 2^131202202001 is an apocalyptic number.

It is an amenable number.

131202202001 is a deficient number, since it is larger than the sum of its proper divisors (10092477091).

131202202001 is a wasteful number, since it uses less digits than its factorization.

131202202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10092477090.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 131202202001 its reverse (100202202131), we get a palindrome (231404404132).

The spelling of 131202202001 in words is "one hundred thirty-one billion, two hundred two million, two hundred two thousand, one".