1310401421977 has 2 divisors, whose sum is σ = 1310401421978. Its totient is φ = 1310401421976.

The previous prime is 1310401421969. The next prime is 1310401422007. The reversal of 1310401421977 is 7791241040131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1302419607696 + 7981814281 = 1141236^2 + 89341^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310401421977 - 2³ = 1310401421969 is a prime.

It is not a weakly prime, because it can be changed into another prime (1310401421947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655200710988 + 655200710989.

It is an arithmetic number, because the mean of its divisors is an integer number (655200710989).

Almost surely, 2^{1310401421977} is an apocalyptic number.

It is an amenable number.

1310401421977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310401421977 is an equidigital number, since it uses as much as digits as its factorization.

1310401421977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 40.

The spelling of 1310401421977 in words is "one trillion, three hundred ten billion, four hundred one million, four hundred twenty-one thousand, nine hundred seventy-seven".