130021223 has 16 divisors (see below), whose sum is σ = 138018816. Its totient is φ = 122301120.

The previous prime is 130021153. The next prime is 130021259. The reversal of 130021223 is 322120031.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 130021223 - 2⁸ = 130020967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130021198 and 130021207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130021273) 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, 339290 + ... + 339672.

It is an arithmetic number, because the mean of its divisors is an integer number (8626176).

Almost surely, 2^130021223 is an apocalyptic number.

130021223 is a deficient number, since it is larger than the sum of its proper divisors (7997593).

130021223 is a wasteful number, since it uses less digits than its factorization.

130021223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694.

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

The square root of 130021223 is about 11402.6849031270. The cubic root of 130021223 is about 506.6072674383.

Adding to 130021223 its reverse (322120031), we get a palindrome (452141254).

The spelling of 130021223 in words is "one hundred thirty million, twenty-one thousand, two hundred twenty-three".