1111012012823 has 2 divisors, whose sum is σ = 1111012012824. Its totient is φ = 1111012012822.

The previous prime is 1111012012801. The next prime is 1111012012843. The reversal of 1111012012823 is 3282102101111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1111012012823 - 2¹⁸ = 1111011750679 is a prime.

It is a super-3 number, since 3×1111012012823³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111012012843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555506006411 + 555506006412.

It is an arithmetic number, because the mean of its divisors is an integer number (555506006412).

Almost surely, 2^{1111012012823} is an apocalyptic number.

1111012012823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111012012823 is an equidigital number, since it uses as much as digits as its factorization.

1111012012823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 23.

Adding to 1111012012823 its reverse (3282102101111), we get a palindrome (4393114113934).

The spelling of 1111012012823 in words is "one trillion, one hundred eleven billion, twelve million, twelve thousand, eight hundred twenty-three".