6951320131381 has 2 divisors, whose sum is σ = 6951320131382. Its totient is φ = 6951320131380.

The previous prime is 6951320131367. The next prime is 6951320131387. The reversal of 6951320131381 is 1831310231596.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4525124490756 + 2426195640625 = 2127234^2 + 1557625^2 .

It is a cyclic number.

It is not a de Polignac number, because 6951320131381 - 2¹⁷ = 6951320000309 is a prime.

It is a super-2 number, since 2×6951320131381² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6951320131387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3475660065690 + 3475660065691.

It is an arithmetic number, because the mean of its divisors is an integer number (3475660065691).

Almost surely, 2^{6951320131381} is an apocalyptic number.

It is an amenable number.

6951320131381 is a deficient number, since it is larger than the sum of its proper divisors (1).

6951320131381 is an equidigital number, since it uses as much as digits as its factorization.

6951320131381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 6951320131381 in words is "six trillion, nine hundred fifty-one billion, three hundred twenty million, one hundred thirty-one thousand, three hundred eighty-one".