20202202020123 has 20 divisors (see below), whose sum is σ = 31152101247168. Its totient is φ = 13033678721040.

The previous prime is 20202202020109. The next prime is 20202202020139. The reversal of 20202202020123 is 32102020220202.

20202202020123 is a `hidden beast` number, since 202 + 0 + 220 + 20 + 201 + 23 = 666.

It is not a de Polignac number, because 20202202020123 - 2⁴ = 20202202020107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20202202020096 and 20202202020105.

It is not an unprimeable number, because it can be changed into a prime (20202202027123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4022737836 + ... + 4022742857.

Almost surely, 2^{20202202020123} is an apocalyptic number.

20202202020123 is a deficient number, since it is larger than the sum of its proper divisors (10949899227045).

20202202020123 is an equidigital number, since it uses as much as digits as its factorization.

20202202020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8045480736 (or 8045480727 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 20202202020123 its reverse (32102020220202), we get a palindrome (52304222240325).

The spelling of 20202202020123 in words is "twenty trillion, two hundred two billion, two hundred two million, twenty thousand, one hundred twenty-three".