1214985311 has 2 divisors, whose sum is σ = 1214985312. Its totient is φ = 1214985310.

The previous prime is 1214985301. The next prime is 1214985337. The reversal of 1214985311 is 1135894121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1214985311 - 2²² = 1210791007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1214985301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607492655 + 607492656.

It is an arithmetic number, because the mean of its divisors is an integer number (607492656).

Almost surely, 2^1214985311 is an apocalyptic number.

1214985311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214985311 is an equidigital number, since it uses as much as digits as its factorization.

1214985311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 35.

The square root of 1214985311 is about 34856.6394105915. The cubic root of 1214985311 is about 1067.0636911481.

The spelling of 1214985311 in words is "one billion, two hundred fourteen million, nine hundred eighty-five thousand, three hundred eleven".