1213803707 has 2 divisors, whose sum is σ = 1213803708. Its totient is φ = 1213803706.

The previous prime is 1213803683. The next prime is 1213803709. The reversal of 1213803707 is 7073083121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213803707 is a prime.

Together with 1213803709, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1213803709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606901853 + 606901854.

It is an arithmetic number, because the mean of its divisors is an integer number (606901854).

Almost surely, 2^1213803707 is an apocalyptic number.

1213803707 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213803707 is an equidigital number, since it uses as much as digits as its factorization.

1213803707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 1213803707 is about 34839.6858051275. The cubic root of 1213803707 is about 1066.7176634581.

Adding to 1213803707 its reverse (7073083121), we get a palindrome (8286886828).

The spelling of 1213803707 in words is "one billion, two hundred thirteen million, eight hundred three thousand, seven hundred seven".