1213424030444 has 6 divisors (see below), whose sum is σ = 2123492053284. Its totient is φ = 606712015220.

The previous prime is 1213424030317. The next prime is 1213424030459. The reversal of 1213424030444 is 4440304243121.

It is a super-2 number, since 2×1213424030444² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1213424030444.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151678003802 + ... + 151678003809.

It is an arithmetic number, because the mean of its divisors is an integer number (353915342214).

Almost surely, 2^{1213424030444} is an apocalyptic number.

It is an amenable number.

1213424030444 is a deficient number, since it is larger than the sum of its proper divisors (910068022840).

1213424030444 is a wasteful number, since it uses less digits than its factorization.

1213424030444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303356007615 (or 303356007613 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 1213424030444 its reverse (4440304243121), we get a palindrome (5653728273565).

The spelling of 1213424030444 in words is "one trillion, two hundred thirteen billion, four hundred twenty-four million, thirty thousand, four hundred forty-four".