1213323102 has 12 divisors (see below), whose sum is σ = 2628866760. Its totient is φ = 404441028.

The previous prime is 1213323091. The next prime is 1213323103. The reversal of 1213323102 is 2013233121.

1213323102 is a `hidden beast` number, since 1 + 21 + 332 + 310 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 67406839 = 1213323102 / (1 + 2 + 1 + 3 + 3 + 2 + 3 + 1 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213323103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33703402 + ... + 33703437.

It is an arithmetic number, because the mean of its divisors is an integer number (219072230).

Almost surely, 2^1213323102 is an apocalyptic number.

1213323102 is an abundant number, since it is smaller than the sum of its proper divisors (1415543658).

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

1213323102 is a wasteful number, since it uses less digits than its factorization.

1213323102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67406847 (or 67406844 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1213323102 is about 34832.7877437336. The cubic root of 1213323102 is about 1066.5768560886.

Adding to 1213323102 its reverse (2013233121), we get a palindrome (3226556223).

The spelling of 1213323102 in words is "one billion, two hundred thirteen million, three hundred twenty-three thousand, one hundred two".