131240322002 has 4 divisors (see below), whose sum is σ = 196860483006. Its totient is φ = 65620161000.

The previous prime is 131240321999. The next prime is 131240322071. The reversal of 131240322002 is 200223042131.

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

It can be written as a sum of positive squares in only one way, i.e., 131117134201 + 123187801 = 362101^2 + 11099^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32810080499 + ... + 32810080502.

Almost surely, 2^131240322002 is an apocalyptic number.

131240322002 is a deficient number, since it is larger than the sum of its proper divisors (65620161004).

131240322002 is an equidigital number, since it uses as much as digits as its factorization.

131240322002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65620161003.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 131240322002 its reverse (200223042131), we get a palindrome (331463364133).

The spelling of 131240322002 in words is "one hundred thirty-one billion, two hundred forty million, three hundred twenty-two thousand, two".