123011020033 has 4 divisors (see below), whose sum is σ = 134193840048. Its totient is φ = 111828200020.

The previous prime is 123011020003. The next prime is 123011020049. The reversal of 123011020033 is 330020110321.

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 123011020033 - 2¹⁷ = 123010888961 is a prime.

It is a super-2 number, since 2×123011020033² (a number of 23 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 = 123011019989 and 123011020016.

It is not an unprimeable number, because it can be changed into a prime (123011020003) 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, 5591409991 + ... + 5591410012.

It is an arithmetic number, because the mean of its divisors is an integer number (33548460012).

Almost surely, 2^123011020033 is an apocalyptic number.

It is an amenable number.

123011020033 is a deficient number, since it is larger than the sum of its proper divisors (11182820015).

123011020033 is a wasteful number, since it uses less digits than its factorization.

123011020033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11182820014.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 123011020033 its reverse (330020110321), we get a palindrome (453031130354).

The spelling of 123011020033 in words is "one hundred twenty-three billion, eleven million, twenty thousand, thirty-three".