1213230044 has 18 divisors (see below), whose sum is σ = 2299036320. Its totient is φ = 559952016.

The previous prime is 1213230023. The next prime is 1213230091. The reversal of 1213230044 is 4400323121.

It is a junction number, because it is equal to n+sod(n) for n = 1213229998 and 1213230025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 896684 + ... + 898035.

It is an arithmetic number, because the mean of its divisors is an integer number (127724240).

Almost surely, 2^1213230044 is an apocalyptic number.

It is an amenable number.

1213230044 is a deficient number, since it is larger than the sum of its proper divisors (1085806276).

1213230044 is a wasteful number, since it uses less digits than its factorization.

1213230044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794749 (or 1794734 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1213230044 is about 34831.4519364324. The cubic root of 1213230044 is about 1066.5495877139.

Adding to 1213230044 its reverse (4400323121), we get a palindrome (5613553165).

The spelling of 1213230044 in words is "one billion, two hundred thirteen million, two hundred thirty thousand, forty-four".