1111121040023 has 16 divisors (see below), whose sum is σ = 1162708945920. Its totient is φ = 1060812093600.

The previous prime is 1111121040019. The next prime is 1111121040049. The reversal of 1111121040023 is 3200401211111.

It is a cyclic number.

It is not a de Polignac number, because 1111121040023 - 2² = 1111121040019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111121039983 and 1111121040010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111121040923) 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, 447983 + ... + 1556576.

It is an arithmetic number, because the mean of its divisors is an integer number (72669309120).

Almost surely, 2^{1111121040023} is an apocalyptic number.

1111121040023 is a deficient number, since it is larger than the sum of its proper divisors (51587905897).

1111121040023 is a wasteful number, since it uses less digits than its factorization.

1111121040023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004878.

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

Adding to 1111121040023 its reverse (3200401211111), we get a palindrome (4311522251134).

The spelling of 1111121040023 in words is "one trillion, one hundred eleven billion, one hundred twenty-one million, forty thousand, twenty-three".