1023120112 has 120 divisors (see below), whose sum is σ = 2445183776. Its totient is φ = 406093824.

The previous prime is 1023120053. The next prime is 1023120127. The reversal of 1023120112 is 2110213201.

It is a junction number, because it is equal to n+sod(n) for n = 1023120092 and 1023120101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2362648 + ... + 2363080.

Almost surely, 2^1023120112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1023120112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1222591888).

1023120112 is an abundant number, since it is smaller than the sum of its proper divisors (1422063664).

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

1023120112 is a wasteful number, since it uses less digits than its factorization.

1023120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1023120112 is about 31986.2487953808. The cubic root of 1023120112 is about 1007.6480620282.

Adding to 1023120112 its reverse (2110213201), we get a palindrome (3133333313).

The spelling of 1023120112 in words is "one billion, twenty-three million, one hundred twenty thousand, one hundred twelve".