1213303112 has 48 divisors (see below), whose sum is σ = 2717918460. Its totient is φ = 505927296.

The previous prime is 1213303111. The next prime is 1213303123. The reversal of 1213303112 is 2113033121.

It can be written as a sum of positive squares in 2 ways, for example, as 1185149476 + 28153636 = 34426^2 + 5306^2 .

It is not an unprimeable number, because it can be changed into a prime (1213303111) 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, 27323 + ... + 56330.

Almost surely, 2^1213303112 is an apocalyptic number.

It is an amenable number.

1213303112 is an abundant number, since it is smaller than the sum of its proper divisors (1504615348).

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

1213303112 is a wasteful number, since it uses less digits than its factorization.

1213303112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83710 (or 83699 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1213303112 is about 34832.5008002584. The cubic root of 1213303112 is about 1066.5709986248.

Adding to 1213303112 its reverse (2113033121), we get a palindrome (3326336233).

The spelling of 1213303112 in words is "one billion, two hundred thirteen million, three hundred three thousand, one hundred twelve".