311690000669 has 2 divisors, whose sum is σ = 311690000670. Its totient is φ = 311690000668.

The previous prime is 311690000621. The next prime is 311690000683. The reversal of 311690000669 is 966000096113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 246996078169 + 64693922500 = 496987^2 + 254350^2 .

It is a cyclic number.

It is not a de Polignac number, because 311690000669 - 2¹² = 311689996573 is a prime.

It is a super-2 number, since 2×311690000669² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311690000689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155845000334 + 155845000335.

It is an arithmetic number, because the mean of its divisors is an integer number (155845000335).

Almost surely, 2^311690000669 is an apocalyptic number.

It is an amenable number.

311690000669 is a deficient number, since it is larger than the sum of its proper divisors (1).

311690000669 is an equidigital number, since it uses as much as digits as its factorization.

311690000669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 41.

The spelling of 311690000669 in words is "three hundred eleven billion, six hundred ninety million, six hundred sixty-nine", and thus it is an aban number.