1111221030023 has 24 divisors (see below), whose sum is σ = 1218104334720. Its totient is φ = 1013107723680.

The previous prime is 1111221029999. The next prime is 1111221030071. The reversal of 1111221030023 is 3200301221111.

It is not a de Polignac number, because 1111221030023 - 2²⁰ = 1111219981447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111221029983 and 1111221030010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111221030823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65623868 + ... + 65640798.

It is an arithmetic number, because the mean of its divisors is an integer number (50754347280).

Almost surely, 2^{1111221030023} is an apocalyptic number.

1111221030023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1111221030023 is a deficient number, since it is larger than the sum of its proper divisors (106883304697).

1111221030023 is a wasteful number, since it uses less digits than its factorization.

1111221030023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21719 (or 21706 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1111221030023 its reverse (3200301221111), we get a palindrome (4311522251134).

The spelling of 1111221030023 in words is "one trillion, one hundred eleven billion, two hundred twenty-one million, thirty thousand, twenty-three".