123213011133 has 16 divisors (see below), whose sum is σ = 166728499200. Its totient is φ = 80921579760.

The previous prime is 123213011087. The next prime is 123213011197. The reversal of 123213011133 is 331110312321.

It is a happy number.

It is not a de Polignac number, because 123213011133 - 2¹⁷ = 123212880061 is a prime.

It is a super-2 number, since 2×123213011133² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123213011333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46288 + ... + 498566.

It is an arithmetic number, because the mean of its divisors is an integer number (10420531200).

Almost surely, 2^123213011133 is an apocalyptic number.

It is an amenable number.

123213011133 is a deficient number, since it is larger than the sum of its proper divisors (43515488067).

123213011133 is a wasteful number, since it uses less digits than its factorization.

123213011133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453632.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 123213011133 its reverse (331110312321), we get a palindrome (454323323454).

The spelling of 123213011133 in words is "one hundred twenty-three billion, two hundred thirteen million, eleven thousand, one hundred thirty-three".