1213353113 has 16 divisors (see below), whose sum is σ = 1455697920. Its totient is φ = 989398800.

The previous prime is 1213353107. The next prime is 1213353131. The reversal of 1213353113 is 3113533121.

It is a cyclic number.

It is not a de Polignac number, because 1213353113 - 2⁸ = 1213352857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213353103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34583 + ... + 60188.

It is an arithmetic number, because the mean of its divisors is an integer number (90981120).

Almost surely, 2^1213353113 is an apocalyptic number.

It is an amenable number.

1213353113 is a deficient number, since it is larger than the sum of its proper divisors (242344807).

1213353113 is an equidigital number, since it uses as much as digits as its factorization.

1213353113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94868.

The product of its digits is 810, while the sum is 23.

The square root of 1213353113 is about 34833.2185277215. The cubic root of 1213353113 is about 1066.5856497820.

Adding to 1213353113 its reverse (3113533121), we get a palindrome (4326886234).

The spelling of 1213353113 in words is "one billion, two hundred thirteen million, three hundred fifty-three thousand, one hundred thirteen".