1408691251211 has 2 divisors, whose sum is σ = 1408691251212. Its totient is φ = 1408691251210.

The previous prime is 1408691251157. The next prime is 1408691251213. The reversal of 1408691251211 is 1121521968041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1408691251211 - 2⁶ = 1408691251147 is a prime.

It is a super-2 number, since 2×1408691251211² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 1408691251213, 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 (1408691251213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 704345625605 + 704345625606.

It is an arithmetic number, because the mean of its divisors is an integer number (704345625606).

Almost surely, 2^{1408691251211} is an apocalyptic number.

1408691251211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1408691251211 is an equidigital number, since it uses as much as digits as its factorization.

1408691251211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 41.

The spelling of 1408691251211 in words is "one trillion, four hundred eight billion, six hundred ninety-one million, two hundred fifty-one thousand, two hundred eleven".