1122103203123 has 32 divisors (see below), whose sum is σ = 1729174644736. Its totient is φ = 633975994368.

The previous prime is 1122103203077. The next prime is 1122103203127. The reversal of 1122103203123 is 3213023012211.

It is not a de Polignac number, because 1122103203123 - 2⁶ = 1122103203059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1122103203123.

It is not an unprimeable number, because it can be changed into a prime (1122103203127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1837590 + ... + 2370852.

It is an arithmetic number, because the mean of its divisors is an integer number (54036707648).

Almost surely, 2^{1122103203123} is an apocalyptic number.

1122103203123 is a deficient number, since it is larger than the sum of its proper divisors (607071441613).

1122103203123 is a wasteful number, since it uses less digits than its factorization.

1122103203123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534403.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1122103203123 its reverse (3213023012211), we get a palindrome (4335126215334).

The spelling of 1122103203123 in words is "one trillion, one hundred twenty-two billion, one hundred three million, two hundred three thousand, one hundred twenty-three".