1000123020112 has 20 divisors (see below), whose sum is σ = 1964282714740. Its totient is φ = 493211351808.

The previous prime is 1000123020107. The next prime is 1000123020173. The reversal of 1000123020112 is 2110203210001.

It can be written as a sum of positive squares in 2 ways, for example, as 644911788096 + 355211232016 = 803064^2 + 595996^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1000123020092 and 1000123020101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428133687 + ... + 428136022.

It is an arithmetic number, because the mean of its divisors is an integer number (98214135737).

Almost surely, 2^{1000123020112} is an apocalyptic number.

It is an amenable number.

1000123020112 is a deficient number, since it is larger than the sum of its proper divisors (964159694628).

1000123020112 is an equidigital number, since it uses as much as digits as its factorization.

1000123020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856269790 (or 856269784 counting only the distinct ones).

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

Adding to 1000123020112 its reverse (2110203210001), we get a palindrome (3110326230113).

The spelling of 1000123020112 in words is "one trillion, one hundred twenty-three million, twenty thousand, one hundred twelve".