1213697411 has 2 divisors, whose sum is σ = 1213697412. Its totient is φ = 1213697410.

The previous prime is 1213697377. The next prime is 1213697413. The reversal of 1213697411 is 1147963121.

It is a strong prime.

It is an emirp because it is prime and its reverse (1147963121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1213697411 - 2¹⁰ = 1213696387 is a prime.

It is a super-2 number, since 2×1213697411² = 2946122810936205842, which contains 22 as substring.

Together with 1213697413, 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 (1213697413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606848705 + 606848706.

It is an arithmetic number, because the mean of its divisors is an integer number (606848706).

Almost surely, 2^1213697411 is an apocalyptic number.

1213697411 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213697411 is an equidigital number, since it uses as much as digits as its factorization.

1213697411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 35.

The square root of 1213697411 is about 34838.1602700257. The cubic root of 1213697411 is about 1066.6865241203.

The spelling of 1213697411 in words is "one billion, two hundred thirteen million, six hundred ninety-seven thousand, four hundred eleven".