131022315202 has 8 divisors (see below), whose sum is σ = 196537412412. Its totient is φ = 65509844400.

The previous prime is 131022315169. The next prime is 131022315209. The reversal of 131022315202 is 202513220131.

It can be written as a sum of positive squares in 2 ways, for example, as 130090783761 + 931531441 = 360681^2 + 30521^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (131022315209) 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, 526749 + ... + 734512.

Almost surely, 2^131022315202 is an apocalyptic number.

131022315202 is a deficient number, since it is larger than the sum of its proper divisors (65515097210).

131022315202 is a wasteful number, since it uses less digits than its factorization.

131022315202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313204.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 131022315202 its reverse (202513220131), we get a palindrome (333535535333).

It can be divided in two parts, 131022 and 315202, that added together give a square (446224 = 668²).

The spelling of 131022315202 in words is "one hundred thirty-one billion, twenty-two million, three hundred fifteen thousand, two hundred two".