10123442120 has 32 divisors (see below), whose sum is σ = 24848449920. Its totient is φ = 3681251520.

The previous prime is 10123442071. The next prime is 10123442129. The reversal of 10123442120 is 2124432101.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 10123442092 and 10123442101.

It is not an unprimeable number, because it can be changed into a prime (10123442129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11503472 + ... + 11504351.

It is an arithmetic number, because the mean of its divisors is an integer number (776514060).

Almost surely, 2^10123442120 is an apocalyptic number.

10123442120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10123442120 is an abundant number, since it is smaller than the sum of its proper divisors (14725007800).

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

10123442120 is a wasteful number, since it uses less digits than its factorization.

10123442120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23007845 (or 23007841 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 10123442120 its reverse (2124432101), we get a palindrome (12247874221).

The spelling of 10123442120 in words is "ten billion, one hundred twenty-three million, four hundred forty-two thousand, one hundred twenty".