10020202123 has 4 divisors (see below), whose sum is σ = 10020445120. Its totient is φ = 10019959128.

The previous prime is 10020202111. The next prime is 10020202147. The reversal of 10020202123 is 32120202001.

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-10020202123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10020202163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42540 + ... + 147817.

It is an arithmetic number, because the mean of its divisors is an integer number (2505111280).

Almost surely, 2^10020202123 is an apocalyptic number.

10020202123 is a deficient number, since it is larger than the sum of its proper divisors (242997).

10020202123 is an equidigital number, since it uses as much as digits as its factorization.

10020202123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242996.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 10020202123 its reverse (32120202001), we get a palindrome (42140404124).

The spelling of 10020202123 in words is "ten billion, twenty million, two hundred two thousand, one hundred twenty-three".