3180940023397 has 2 divisors, whose sum is σ = 3180940023398. Its totient is φ = 3180940023396.

The previous prime is 3180940023379. The next prime is 3180940023409. The reversal of 3180940023397 is 7933200490813.

Together with previous prime (3180940023379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3180940023361 + 36 = 1783519^2 + 6^2 .

It is a cyclic number.

It is not a de Polignac number, because 3180940023397 - 2⁷ = 3180940023269 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3180940023397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3180940023337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1590470011698 + 1590470011699.

It is an arithmetic number, because the mean of its divisors is an integer number (1590470011699).

Almost surely, 2^{3180940023397} is an apocalyptic number.

It is an amenable number.

3180940023397 is a deficient number, since it is larger than the sum of its proper divisors (1).

3180940023397 is an equidigital number, since it uses as much as digits as its factorization.

3180940023397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 3180940023397 in words is "three trillion, one hundred eighty billion, nine hundred forty million, twenty-three thousand, three hundred ninety-seven".