1214471311 has 4 divisors (see below), whose sum is σ = 1214558712. Its totient is φ = 1214383912.

The previous prime is 1214471287. The next prime is 1214471341. The reversal of 1214471311 is 1131744121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1131744121 = 103 ⋅10987807.

It is a cyclic number.

It is not a de Polignac number, because 1214471311 - 2⁷ = 1214471183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214471341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17701 + ... + 52366.

It is an arithmetic number, because the mean of its divisors is an integer number (303639678).

Almost surely, 2^1214471311 is an apocalyptic number.

1214471311 is a deficient number, since it is larger than the sum of its proper divisors (87401).

1214471311 is an equidigital number, since it uses as much as digits as its factorization.

1214471311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87400.

The product of its digits is 672, while the sum is 25.

The square root of 1214471311 is about 34849.2655733231. The cubic root of 1214471311 is about 1066.9131960231.

The spelling of 1214471311 in words is "one billion, two hundred fourteen million, four hundred seventy-one thousand, three hundred eleven".