311632114477 has 2 divisors, whose sum is σ = 311632114478. Its totient is φ = 311632114476.

The previous prime is 311632114429. The next prime is 311632114483. The reversal of 311632114477 is 774411236113.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 274100414116 + 37531700361 = 523546^2 + 193731^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311632114477 is a prime.

It is a super-2 number, since 2×311632114477² (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 (311632124477) 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, 155816057238 + 155816057239.

It is an arithmetic number, because the mean of its divisors is an integer number (155816057239).

Almost surely, 2^311632114477 is an apocalyptic number.

It is an amenable number.

311632114477 is a deficient number, since it is larger than the sum of its proper divisors (1).

311632114477 is an equidigital number, since it uses as much as digits as its factorization.

311632114477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 40.

The spelling of 311632114477 in words is "three hundred eleven billion, six hundred thirty-two million, one hundred fourteen thousand, four hundred seventy-seven".