1133123212213 has 4 divisors (see below), whose sum is σ = 1133450046720. Its totient is φ = 1132796377708.

The previous prime is 1133123212211. The next prime is 1133123212223. The reversal of 1133123212213 is 3122123213311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1133123212213 - 2¹ = 1133123212211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133123212211) 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, 163412053 + ... + 163418986.

It is an arithmetic number, because the mean of its divisors is an integer number (283362511680).

Almost surely, 2^{1133123212213} is an apocalyptic number.

It is an amenable number.

1133123212213 is a deficient number, since it is larger than the sum of its proper divisors (326834507).

1133123212213 is an equidigital number, since it uses as much as digits as its factorization.

1133123212213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326834506.

The product of its digits is 1296, while the sum is 25.

Adding to 1133123212213 its reverse (3122123213311), we get a palindrome (4255246425524).

The spelling of 1133123212213 in words is "one trillion, one hundred thirty-three billion, one hundred twenty-three million, two hundred twelve thousand, two hundred thirteen".