133211211123 has 4 divisors (see below), whose sum is σ = 177614948168. Its totient is φ = 88807474080.

The previous prime is 133211211121. The next prime is 133211211151. The reversal of 133211211123 is 321112112331.

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

It is not a de Polignac number, because 133211211123 - 2¹ = 133211211121 is a prime.

It is a super-2 number, since 2×133211211123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133211211123.

It is not an unprimeable number, because it can be changed into a prime (133211211121) 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, 22201868518 + ... + 22201868523.

It is an arithmetic number, because the mean of its divisors is an integer number (44403737042).

Almost surely, 2^133211211123 is an apocalyptic number.

133211211123 is a deficient number, since it is larger than the sum of its proper divisors (44403737045).

133211211123 is an equidigital number, since it uses as much as digits as its factorization.

133211211123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44403737044.

The product of its digits is 216, while the sum is 21.

Adding to 133211211123 its reverse (321112112331), we get a palindrome (454323323454).

The spelling of 133211211123 in words is "one hundred thirty-three billion, two hundred eleven million, two hundred eleven thousand, one hundred twenty-three".