1213014321 has 12 divisors (see below), whose sum is σ = 1844349520. Its totient is φ = 766114200.

The previous prime is 1213014317. The next prime is 1213014329. The reversal of 1213014321 is 1234103121.

It is not a de Polignac number, because 1213014321 - 2² = 1213014317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1213014294 and 1213014303.

It is not an unprimeable number, because it can be changed into a prime (1213014329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3546655 + ... + 3546996.

Almost surely, 2^1213014321 is an apocalyptic number.

It is an amenable number.

1213014321 is a deficient number, since it is larger than the sum of its proper divisors (631335199).

1213014321 is a wasteful number, since it uses less digits than its factorization.

1213014321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7093676 (or 7093673 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1213014321 is about 34828.3551291186. The cubic root of 1213014321 is about 1066.4863699931.

Adding to 1213014321 its reverse (1234103121), we get a palindrome (2447117442).

The spelling of 1213014321 in words is "one billion, two hundred thirteen million, fourteen thousand, three hundred twenty-one".