131143410321202 has 4 divisors (see below), whose sum is σ = 196715115481806. Its totient is φ = 65571705160600.

The previous prime is 131143410321197. The next prime is 131143410321223. The reversal of 131143410321202 is 202123014341131.

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., 130668012482121 + 475397839081 = 11431011^2 + 689491^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32785852580299 + ... + 32785852580302.

Almost surely, 2^{131143410321202} is an apocalyptic number.

131143410321202 is a deficient number, since it is larger than the sum of its proper divisors (65571705160604).

131143410321202 is an equidigital number, since it uses as much as digits as its factorization.

131143410321202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65571705160603.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 131143410321202 its reverse (202123014341131), we get a palindrome (333266424662333).

The spelling of 131143410321202 in words is "one hundred thirty-one trillion, one hundred forty-three billion, four hundred ten million, three hundred twenty-one thousand, two hundred two".