131202122 has 4 divisors (see below), whose sum is σ = 196803186. Its totient is φ = 65601060.

The previous prime is 131202089. The next prime is 131202139. The reversal of 131202122 is 221202131.

It is a happy number.

131202122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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., 130667761 + 534361 = 11431^2 + 731^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131202097 and 131202106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32800529 + ... + 32800532.

Almost surely, 2^131202122 is an apocalyptic number.

131202122 is a deficient number, since it is larger than the sum of its proper divisors (65601064).

131202122 is an equidigital number, since it uses as much as digits as its factorization.

131202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65601063.

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

The square root of 131202122 is about 11454.3494795645. The cubic root of 131202122 is about 508.1363765749.

Adding to 131202122 its reverse (221202131), we get a palindrome (352404253).

Subtracting 131202122 from its reverse (221202131), we obtain a palindrome (90000009).

The spelling of 131202122 in words is "one hundred thirty-one million, two hundred two thousand, one hundred twenty-two".