1213334120 has 32 divisors (see below), whose sum is σ = 2732533920. Its totient is φ = 484883520.

The previous prime is 1213334119. The next prime is 1213334131. The reversal of 1213334120 is 214333121.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1213334092 and 1213334101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31415 + ... + 58425.

It is an arithmetic number, because the mean of its divisors is an integer number (85391685).

Almost surely, 2^1213334120 is an apocalyptic number.

1213334120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213334120 is an abundant number, since it is smaller than the sum of its proper divisors (1519199800).

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

1213334120 is a wasteful number, since it uses less digits than its factorization.

1213334120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28145 (or 28141 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1213334120 is about 34832.9458989618. The cubic root of 1213334120 is about 1066.5800845521.

Adding to 1213334120 its reverse (214333121), we get a palindrome (1427667241).

Subtracting from 1213334120 its reverse (214333121), we obtain a palindrome (999000999).

The spelling of 1213334120 in words is "one billion, two hundred thirteen million, three hundred thirty-four thousand, one hundred twenty".