1213110324 has 96 divisors (see below), whose sum is σ = 3252627840. Its totient is φ = 390749184.

The previous prime is 1213110323. The next prime is 1213110341. The reversal of 1213110324 is 4230113121.

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 = 1213110297 and 1213110306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213110323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 449122 + ... + 451814.

It is an arithmetic number, because the mean of its divisors is an integer number (33881540).

Almost surely, 2^1213110324 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213110324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1626313920).

1213110324 is an abundant number, since it is smaller than the sum of its proper divisors (2039517516).

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

1213110324 is a wasteful number, since it uses less digits than its factorization.

1213110324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2846 (or 2838 counting only the distinct ones).

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

The square root of 1213110324 is about 34829.7333323125. The cubic root of 1213110324 is about 1066.5145046403.

Adding to 1213110324 its reverse (4230113121), we get a palindrome (5443223445).

The spelling of 1213110324 in words is "one billion, two hundred thirteen million, one hundred ten thousand, three hundred twenty-four".