1214431213 has 12 divisors (see below), whose sum is σ = 1250770240. Its totient is φ = 1178696376.

The previous prime is 1214431199. The next prime is 1214431223. The reversal of 1214431213 is 3121344121.

It is a de Polignac number, because none of the positive numbers 2^k-1214431213 is a prime.

It is a super-2 number, since 2×1214431213² = 2949686342217302738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214431223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2535108 + ... + 2535586.

Almost surely, 2^1214431213 is an apocalyptic number.

It is an amenable number.

1214431213 is a deficient number, since it is larger than the sum of its proper divisors (36339027).

1214431213 is an frugal number, since it uses more digits than its factorization.

1214431213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104 (or 625 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 1214431213 is about 34848.6902623327. The cubic root of 1214431213 is about 1066.9014538612.

Adding to 1214431213 its reverse (3121344121), we get a palindrome (4335775334).

The spelling of 1214431213 in words is "one billion, two hundred fourteen million, four hundred thirty-one thousand, two hundred thirteen".