1316213377 has 2 divisors, whose sum is σ = 1316213378. Its totient is φ = 1316213376.

The previous prime is 1316213329. The next prime is 1316213411. The reversal of 1316213377 is 7733126131.

It is an a-pointer prime, because the next prime (1316213411) can be obtained adding 1316213377 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 670240321 + 645973056 = 25889^2 + 25416^2 .

It is a cyclic number.

It is not a de Polignac number, because 1316213377 - 2²³ = 1307824769 is a prime.

It is not a weakly prime, because it can be changed into another prime (1316213177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658106688 + 658106689.

It is an arithmetic number, because the mean of its divisors is an integer number (658106689).

Almost surely, 2^1316213377 is an apocalyptic number.

It is an amenable number.

1316213377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1316213377 is an equidigital number, since it uses as much as digits as its factorization.

1316213377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15876, while the sum is 34.

The square root of 1316213377 is about 36279.6551389343. The cubic root of 1316213377 is about 1095.9113718026.

The spelling of 1316213377 in words is "one billion, three hundred sixteen million, two hundred thirteen thousand, three hundred seventy-seven".