1212377713 has 2 divisors, whose sum is σ = 1212377714. Its totient is φ = 1212377712.

The previous prime is 1212377689. The next prime is 1212377723. The reversal of 1212377713 is 3177732121.

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., 1051899489 + 160478224 = 32433^2 + 12668^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212377713 - 2⁵ = 1212377681 is a prime.

It is a super-2 number, since 2×1212377713² = 2939719437958220738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1212377723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606188856 + 606188857.

It is an arithmetic number, because the mean of its divisors is an integer number (606188857).

Almost surely, 2^1212377713 is an apocalyptic number.

It is an amenable number.

1212377713 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212377713 is an equidigital number, since it uses as much as digits as its factorization.

1212377713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12348, while the sum is 34.

The square root of 1212377713 is about 34819.2147096973. The cubic root of 1212377713 is about 1066.2997680299.

The spelling of 1212377713 in words is "one billion, two hundred twelve million, three hundred seventy-seven thousand, seven hundred thirteen".