10202122123 has 4 divisors (see below), whose sum is σ = 10224157408. Its totient is φ = 10180086840.

The previous prime is 10202122111. The next prime is 10202122129. The reversal of 10202122123 is 32122120201.

It is a happy number.

10202122123 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10202122123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10202122097 and 10202122106.

It is not an unprimeable number, because it can be changed into a prime (10202122129) 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, 11016948 + ... + 11017873.

It is an arithmetic number, because the mean of its divisors is an integer number (2556039352).

Almost surely, 2^10202122123 is an apocalyptic number.

10202122123 is a deficient number, since it is larger than the sum of its proper divisors (22035285).

10202122123 is an equidigital number, since it uses as much as digits as its factorization.

10202122123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22035284.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 10202122123 its reverse (32122120201), we get a palindrome (42324242324).

The spelling of 10202122123 in words is "ten billion, two hundred two million, one hundred twenty-two thousand, one hundred twenty-three".