1121111012023 has 4 divisors (see below), whose sum is σ = 1121599941928. Its totient is φ = 1120622082120.

The previous prime is 1121111012009. The next prime is 1121111012057. The reversal of 1121111012023 is 3202101111211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1121111012023 - 2³³ = 1112521077431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121111011988 and 1121111012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121111012123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244461513 + ... + 244466098.

It is an arithmetic number, because the mean of its divisors is an integer number (280399985482).

Almost surely, 2^{1121111012023} is an apocalyptic number.

1121111012023 is a deficient number, since it is larger than the sum of its proper divisors (488929905).

1121111012023 is an equidigital number, since it uses as much as digits as its factorization.

1121111012023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488929904.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1121111012023 its reverse (3202101111211), we get a palindrome (4323212123234).

The spelling of 1121111012023 in words is "one trillion, one hundred twenty-one billion, one hundred eleven million, twelve thousand, twenty-three".