1213330431244 has 12 divisors (see below), whose sum is σ = 2123460801784. Its totient is φ = 606627345024.

The previous prime is 1213330431169. The next prime is 1213330431263. The reversal of 1213330431244 is 4421340333121.

It is a super-2 number, since 2×1213330431244² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9395502 + ... + 9523765.

Almost surely, 2^{1213330431244} is an apocalyptic number.

It is an amenable number.

1213330431244 is a deficient number, since it is larger than the sum of its proper divisors (910130370540).

1213330431244 is a wasteful number, since it uses less digits than its factorization.

1213330431244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18935304 (or 18935302 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 1213330431244 its reverse (4421340333121), we get a palindrome (5634670764365).

The spelling of 1213330431244 in words is "one trillion, two hundred thirteen billion, three hundred thirty million, four hundred thirty-one thousand, two hundred forty-four".