221130000023 has 2 divisors, whose sum is σ = 221130000024. Its totient is φ = 221130000022.

The previous prime is 221129999971. The next prime is 221130000031. The reversal of 221130000023 is 320000031122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221130000023 - 2³⁰ = 220056258199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221129999962 and 221130000007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221130600023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110565000011 + 110565000012.

It is an arithmetic number, because the mean of its divisors is an integer number (110565000012).

Almost surely, 2^221130000023 is an apocalyptic number.

221130000023 is a deficient number, since it is larger than the sum of its proper divisors (1).

221130000023 is an equidigital number, since it uses as much as digits as its factorization.

221130000023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 221130000023 its reverse (320000031122), we get a palindrome (541130031145).

The spelling of 221130000023 in words is "two hundred twenty-one billion, one hundred thirty million, twenty-three", and thus it is an aban number.