1111201332123 has 16 divisors (see below), whose sum is σ = 1485969632000. Its totient is φ = 738619759584.

The previous prime is 1111201332119. The next prime is 1111201332151. The reversal of 1111201332123 is 3212331021111.

It is not a de Polignac number, because 1111201332123 - 2² = 1111201332119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1111201332123.

It is not an unprimeable number, because it can be changed into a prime (1111201332023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1242165 + ... + 1940457.

It is an arithmetic number, because the mean of its divisors is an integer number (92873102000).

Almost surely, 2^{1111201332123} is an apocalyptic number.

1111201332123 is a deficient number, since it is larger than the sum of its proper divisors (374768299877).

1111201332123 is a wasteful number, since it uses less digits than its factorization.

1111201332123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699858.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1111201332123 its reverse (3212331021111), we get a palindrome (4323532353234).

The spelling of 1111201332123 in words is "one trillion, one hundred eleven billion, two hundred one million, three hundred thirty-two thousand, one hundred twenty-three".