31341144377 has 2 divisors, whose sum is σ = 31341144378. Its totient is φ = 31341144376.

The previous prime is 31341144323. The next prime is 31341144403. The reversal of 31341144377 is 77344114313.

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., 31263897856 + 77246521 = 176816^2 + 8789^2 .

It is a cyclic number.

It is not a de Polignac number, because 31341144377 - 2⁶ = 31341144313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31341144377.

It is not a weakly prime, because it can be changed into another prime (31341143377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15670572188 + 15670572189.

It is an arithmetic number, because the mean of its divisors is an integer number (15670572189).

Almost surely, 2^31341144377 is an apocalyptic number.

It is an amenable number.

31341144377 is a deficient number, since it is larger than the sum of its proper divisors (1).

31341144377 is an equidigital number, since it uses as much as digits as its factorization.

31341144377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 38.

The spelling of 31341144377 in words is "thirty-one billion, three hundred forty-one million, one hundred forty-four thousand, three hundred seventy-seven".