20202020310123 has 16 divisors (see below), whose sum is σ = 30129784212000. Its totient is φ = 13377624184800.

The previous prime is 20202020310119. The next prime is 20202020310133. The reversal of 20202020310123 is 32101302020202.

It is not a de Polignac number, because 20202020310123 - 2² = 20202020310119 is a prime.

It is a super-2 number, since 2×20202020310123² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20202020310096 and 20202020310105.

It is not an unprimeable number, because it can be changed into a prime (20202020310133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2510811328 + ... + 2510819373.

It is an arithmetic number, because the mean of its divisors is an integer number (1883111513250).

Almost surely, 2^{20202020310123} is an apocalyptic number.

20202020310123 is a deficient number, since it is larger than the sum of its proper divisors (9927763901877).

20202020310123 is a wasteful number, since it uses less digits than its factorization.

20202020310123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5021630859 (or 5021630853 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20202020310123 its reverse (32101302020202), we get a palindrome (52303322330325).

The spelling of 20202020310123 in words is "twenty trillion, two hundred two billion, twenty million, three hundred ten thousand, one hundred twenty-three".