31230122377 has 2 divisors, whose sum is σ = 31230122378. Its totient is φ = 31230122376.

The previous prime is 31230122311. The next prime is 31230122419. The reversal of 31230122377 is 77322103213.

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., 27366754041 + 3863368336 = 165429^2 + 62156^2 .

It is a cyclic number.

It is not a de Polignac number, because 31230122377 - 2²⁷ = 31095904649 is a prime.

It is a super-2 number, since 2×31230122377² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31230120377) 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, 15615061188 + 15615061189.

It is an arithmetic number, because the mean of its divisors is an integer number (15615061189).

Almost surely, 2^31230122377 is an apocalyptic number.

It is an amenable number.

31230122377 is a deficient number, since it is larger than the sum of its proper divisors (1).

31230122377 is an equidigital number, since it uses as much as digits as its factorization.

31230122377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 31.

The spelling of 31230122377 in words is "thirty-one billion, two hundred thirty million, one hundred twenty-two thousand, three hundred seventy-seven".