1233120113 has 4 divisors (see below), whose sum is σ = 1238412708. Its totient is φ = 1227827520.

The previous prime is 1233120067. The next prime is 1233120167. The reversal of 1233120113 is 3110213321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 548355889 + 684764224 = 23417^2 + 26168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1233120113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1233120091 and 1233120100.

It is not an unprimeable number, because it can be changed into a prime (1233120613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2645948 + ... + 2646413.

It is an arithmetic number, because the mean of its divisors is an integer number (309603177).

Almost surely, 2^1233120113 is an apocalyptic number.

It is an amenable number.

1233120113 is a deficient number, since it is larger than the sum of its proper divisors (5292595).

1233120113 is an equidigital number, since it uses as much as digits as its factorization.

1233120113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5292594.

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

The square root of 1233120113 is about 35115.8100148637. The cubic root of 1233120113 is about 1072.3464716127.

Adding to 1233120113 its reverse (3110213321), we get a palindrome (4343333434).

The spelling of 1233120113 in words is "one billion, two hundred thirty-three million, one hundred twenty thousand, one hundred thirteen".