10020123020 has 24 divisors (see below), whose sum is σ = 21046453344. Its totient is φ = 4007250176.

The previous prime is 10020123011. The next prime is 10020123053. The reversal of 10020123020 is 2032102001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10020122992 and 10020123010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58649 + ... + 153231.

It is an arithmetic number, because the mean of its divisors is an integer number (876935556).

Almost surely, 2^10020123020 is an apocalyptic number.

10020123020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10020123020 is an abundant number, since it is smaller than the sum of its proper divisors (11026330324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10020123020 is a wasteful number, since it uses less digits than its factorization.

10020123020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99889 (or 99887 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 10020123020 its reverse (2032102001), we get a palindrome (12052225021).

The spelling of 10020123020 in words is "ten billion, twenty million, one hundred twenty-three thousand, twenty".