123020011203 has 4 divisors (see below), whose sum is σ = 164026681608. Its totient is φ = 82013340800.

The previous prime is 123020011193. The next prime is 123020011271. The reversal of 123020011203 is 302110020321.

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 123020011203 - 2⁵ = 123020011171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123020019203) 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, 20503335198 + ... + 20503335203.

It is an arithmetic number, because the mean of its divisors is an integer number (41006670402).

Almost surely, 2^123020011203 is an apocalyptic number.

123020011203 is a deficient number, since it is larger than the sum of its proper divisors (41006670405).

123020011203 is an equidigital number, since it uses as much as digits as its factorization.

123020011203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41006670404.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 123020011203 its reverse (302110020321), we get a palindrome (425130031524).

The spelling of 123020011203 in words is "one hundred twenty-three billion, twenty million, eleven thousand, two hundred three".