1211113323 has 32 divisors (see below), whose sum is σ = 2139724800. Its totient is φ = 661972608.

The previous prime is 1211113313. The next prime is 1211113331. The reversal of 1211113323 is 3233111121.

It is not a de Polignac number, because 1211113323 - 2⁴ = 1211113307 is a prime.

It is a super-2 number, since 2×1211113323² = 2933590962296204658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211113296 and 1211113305.

It is not an unprimeable number, because it can be changed into a prime (1211113313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134958 + ... + 143651.

It is an arithmetic number, because the mean of its divisors is an integer number (66866400).

Almost surely, 2^1211113323 is an apocalyptic number.

1211113323 is a deficient number, since it is larger than the sum of its proper divisors (928611477).

1211113323 is a wasteful number, since it uses less digits than its factorization.

1211113323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278648 (or 278642 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 1211113323 is about 34801.0534754338. The cubic root of 1211113323 is about 1065.9289573748.

Adding to 1211113323 its reverse (3233111121), we get a palindrome (4444224444).

The spelling of 1211113323 in words is "one billion, two hundred eleven million, one hundred thirteen thousand, three hundred twenty-three".