1012112112123 has 36 divisors (see below), whose sum is σ = 1700704845840. Its totient is φ = 578322200736.

The previous prime is 1012112112091. The next prime is 1012112112131. The reversal of 1012112112123 is 3212112112101.

It is a happy number.

It is not a de Polignac number, because 1012112112123 - 2⁵ = 1012112112091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012112112096 and 1012112112105.

It is not an unprimeable number, because it can be changed into a prime (1012112110123) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12430461 + ... + 12511617.

Almost surely, 2^{1012112112123} is an apocalyptic number.

1012112112123 is a deficient number, since it is larger than the sum of its proper divisors (688592733717).

1012112112123 is a wasteful number, since it uses less digits than its factorization.

1012112112123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109456 (or 109446 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1012112112123 its reverse (3212112112101), we get a palindrome (4224224224224).

The spelling of 1012112112123 in words is "one trillion, twelve billion, one hundred twelve million, one hundred twelve thousand, one hundred twenty-three".