20133331123 has 8 divisors (see below), whose sum is σ = 20274784992. Its totient is φ = 19992126336.

The previous prime is 20133331117. The next prime is 20133331139. The reversal of 20133331123 is 32113333102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20133331123 - 2⁵ = 20133331091 is a prime.

It is a super-2 number, since 2×20133331123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20133331094 and 20133331103.

It is not an unprimeable number, because it can be changed into a prime (20133331103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101461 + ... + 224857.

It is an arithmetic number, because the mean of its divisors is an integer number (2534348124).

Almost surely, 2^20133331123 is an apocalyptic number.

20133331123 is a deficient number, since it is larger than the sum of its proper divisors (141453869).

20133331123 is a wasteful number, since it uses less digits than its factorization.

20133331123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124541.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 20133331123 its reverse (32113333102), we get a palindrome (52246664225).

The spelling of 20133331123 in words is "twenty billion, one hundred thirty-three million, three hundred thirty-one thousand, one hundred twenty-three".