1213230024 has 48 divisors (see below), whose sum is σ = 3479119020. Its totient is φ = 380620800.

The previous prime is 1213230023. The next prime is 1213230091. The reversal of 1213230024 is 4200323121.

It can be written as a sum of positive squares in 2 ways, for example, as 1213128900 + 101124 = 34830^2 + 318^2 .

It is a super-2 number, since 2×1213230024² = 2943854182270081152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1213229979 and 1213230006.

It is not an unprimeable number, because it can be changed into a prime (1213230023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 494377 + ... + 496824.

Almost surely, 2^1213230024 is an apocalyptic number.

It is an amenable number.

1213230024 is an abundant number, since it is smaller than the sum of its proper divisors (2265888996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213230024 is a wasteful number, since it uses less digits than its factorization.

1213230024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991230 (or 991223 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1213230024 is about 34831.4516493355. The cubic root of 1213230024 is about 1066.5495818533.

Adding to 1213230024 its reverse (4200323121), we get a palindrome (5413553145).

The spelling of 1213230024 in words is "one billion, two hundred thirteen million, two hundred thirty thousand, twenty-four".