1213312130 has 8 divisors (see below), whose sum is σ = 2183961852. Its totient is φ = 485324848.

The previous prime is 1213312109. The next prime is 1213312147. The reversal of 1213312130 is 312133121.

It can be written as a sum of positive squares in 2 ways, for example, as 1213198561 + 113569 = 34831^2 + 337^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1213312099 and 1213312108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60665597 + ... + 60665616.

Almost surely, 2^1213312130 is an apocalyptic number.

1213312130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213312130 is a deficient number, since it is larger than the sum of its proper divisors (970649722).

1213312130 is a wasteful number, since it uses less digits than its factorization.

1213312130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121331220.

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

The square root of 1213312130 is about 34832.6302480878. The cubic root of 1213312130 is about 1066.5736410844.

Adding to 1213312130 its reverse (312133121), we get a palindrome (1525445251).

The spelling of 1213312130 in words is "one billion, two hundred thirteen million, three hundred twelve thousand, one hundred thirty".