20133232123 has 4 divisors (see below), whose sum is σ = 20140052968. Its totient is φ = 20126411280.

The previous prime is 20133232061. The next prime is 20133232151. The reversal of 20133232123 is 32123233102.

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

It is a cyclic number.

It is not a de Polignac number, because 20133232123 - 2²⁵ = 20099677691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20133232094 and 20133232103.

It is not an unprimeable number, because it can be changed into a prime (20133232423) 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, 3405993 + ... + 3411898.

It is an arithmetic number, because the mean of its divisors is an integer number (5035013242).

Almost surely, 2^20133232123 is an apocalyptic number.

20133232123 is a deficient number, since it is larger than the sum of its proper divisors (6820845).

20133232123 is an equidigital number, since it uses as much as digits as its factorization.

20133232123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6820844.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20133232123 its reverse (32123233102), we get a palindrome (52256465225).

The spelling of 20133232123 in words is "twenty billion, one hundred thirty-three million, two hundred thirty-two thousand, one hundred twenty-three".