1313201377 has 2 divisors, whose sum is σ = 1313201378. Its totient is φ = 1313201376.

The previous prime is 1313201317. The next prime is 1313201411. The reversal of 1313201377 is 7731023131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1065957201 + 247244176 = 32649^2 + 15724^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313201377 - 2¹⁹ = 1312677089 is a prime.

It is a super-2 number, since 2×1313201377² = 3448995713109392258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1313201317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656600688 + 656600689.

It is an arithmetic number, because the mean of its divisors is an integer number (656600689).

Almost surely, 2^1313201377 is an apocalyptic number.

It is an amenable number.

1313201377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313201377 is an equidigital number, since it uses as much as digits as its factorization.

1313201377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2646, while the sum is 28.

The square root of 1313201377 is about 36238.1204948601. The cubic root of 1313201377 is about 1095.0747784326.

The spelling of 1313201377 in words is "one billion, three hundred thirteen million, two hundred one thousand, three hundred seventy-seven".