1243131214 has 24 divisors (see below), whose sum is σ = 2027351592. Its totient is φ = 571428000.

The previous prime is 1243131203. The next prime is 1243131257. The reversal of 1243131214 is 4121313421.

It is a super-2 number, since 2×1243131214² = 3090750430442227592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77512 + ... + 92164.

It is an arithmetic number, because the mean of its divisors is an integer number (84472983).

Almost surely, 2^1243131214 is an apocalyptic number.

1243131214 is a deficient number, since it is larger than the sum of its proper divisors (784220378).

1243131214 is a wasteful number, since it uses less digits than its factorization.

1243131214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14932 (or 14919 counting only the distinct ones).

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

The square root of 1243131214 is about 35258.0659424195. The cubic root of 1243131214 is about 1075.2406063923.

Adding to 1243131214 its reverse (4121313421), we get a palindrome (5364444635).

The spelling of 1243131214 in words is "one billion, two hundred forty-three million, one hundred thirty-one thousand, two hundred fourteen".