131321202 has 16 divisors (see below), whose sum is σ = 264111840. Its totient is φ = 43528832.

The previous prime is 131321173. The next prime is 131321221. The reversal of 131321202 is 202123131.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 60063 + ... + 62210.

It is an arithmetic number, because the mean of its divisors is an integer number (16506990).

Almost surely, 2^131321202 is an apocalyptic number.

131321202 is an abundant number, since it is smaller than the sum of its proper divisors (132790638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131321202 is a wasteful number, since it uses less digits than its factorization.

131321202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122457.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 131321202 is about 11459.5463260986. The cubic root of 131321202 is about 508.2900595131.

Adding to 131321202 its reverse (202123131), we get a palindrome (333444333).

The spelling of 131321202 in words is "one hundred thirty-one million, three hundred twenty-one thousand, two hundred two".