7831312322131 has 2 divisors, whose sum is σ = 7831312322132. Its totient is φ = 7831312322130.

The previous prime is 7831312322107. The next prime is 7831312322143. The reversal of 7831312322131 is 1312232131387.

It is a strong prime.

It is an emirp because it is prime and its reverse (1312232131387) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7831312322131 - 2¹⁵ = 7831312289363 is a prime.

It is a super-2 number, since 2×7831312322131² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7831312322531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3915656161065 + 3915656161066.

It is an arithmetic number, because the mean of its divisors is an integer number (3915656161066).

Almost surely, 2^{7831312322131} is an apocalyptic number.

7831312322131 is a deficient number, since it is larger than the sum of its proper divisors (1).

7831312322131 is an equidigital number, since it uses as much as digits as its factorization.

7831312322131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The spelling of 7831312322131 in words is "seven trillion, eight hundred thirty-one billion, three hundred twelve million, three hundred twenty-two thousand, one hundred thirty-one".