1020123110 has 16 divisors (see below), whose sum is σ = 1932865200. Its totient is φ = 386572896.

The previous prime is 1020123067. The next prime is 1020123113. The reversal of 1020123110 is 113210201.

It is a junction number, because it is equal to n+sod(n) for n = 1020123091 and 1020123100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020123113) 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, 2684345 + ... + 2684724.

It is an arithmetic number, because the mean of its divisors is an integer number (120804075).

Almost surely, 2^1020123110 is an apocalyptic number.

1020123110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020123110 is a deficient number, since it is larger than the sum of its proper divisors (912742090).

1020123110 is a wasteful number, since it uses less digits than its factorization.

1020123110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5369095.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1020123110 is about 31939.3661490018. The cubic root of 1020123110 is about 1006.6632064021.

Adding to 1020123110 its reverse (113210201), we get a palindrome (1133333311).

The spelling of 1020123110 in words is "one billion, twenty million, one hundred twenty-three thousand, one hundred ten".