131321121203002 has 16 divisors (see below), whose sum is σ = 198012092803560. Its totient is φ = 65317123878912.

The previous prime is 131321121202993. The next prime is 131321121203011. The reversal of 131321121203002 is 200302121123131.

It is an interprime number because it is at equal distance from previous prime (131321121202993) and next prime (131321121203011).

It can be written as a sum of positive squares in 4 ways, for example, as 86730125035801 + 44590996167201 = 9312901^2 + 6677649^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568543 + ... + 16216210.

Almost surely, 2^{131321121203002} is an apocalyptic number.

131321121203002 is a deficient number, since it is larger than the sum of its proper divisors (66690971600558).

131321121203002 is a wasteful number, since it uses less digits than its factorization.

131321121203002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16805217.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 131321121203002 its reverse (200302121123131), we get a palindrome (331623242326133).

The spelling of 131321121203002 in words is "one hundred thirty-one trillion, three hundred twenty-one billion, one hundred twenty-one million, two hundred three thousand, two".