1012120112123 has 8 divisors (see below), whose sum is σ = 1014951964992. Its totient is φ = 1009288662336.

The previous prime is 1012120112057. The next prime is 1012120112147. The reversal of 1012120112123 is 3212110212101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1012120112123 - 2²⁰ = 1012119063547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012120172123) 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, 5337311 + ... + 5523687.

It is an arithmetic number, because the mean of its divisors is an integer number (126868995624).

Almost surely, 2^{1012120112123} is an apocalyptic number.

1012120112123 is a deficient number, since it is larger than the sum of its proper divisors (2831852869).

1012120112123 is a wasteful number, since it uses less digits than its factorization.

1012120112123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201541.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1012120112123 its reverse (3212110212101), we get a palindrome (4224230324224).

The spelling of 1012120112123 in words is "one trillion, twelve billion, one hundred twenty million, one hundred twelve thousand, one hundred twenty-three".