223073450521 has 16 divisors (see below), whose sum is σ = 232997394240. Its totient is φ = 213299593920.

The previous prime is 223073450513. The next prime is 223073450569. The reversal of 223073450521 is 125054370322.

It is a cyclic number.

It is not a de Polignac number, because 223073450521 - 2³ = 223073450513 is a prime.

It is a super-3 number, since 3×223073450521³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223073456521) 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, 11443435 + ... + 11462911.

It is an arithmetic number, because the mean of its divisors is an integer number (14562337140).

Almost surely, 2^223073450521 is an apocalyptic number.

It is an amenable number.

223073450521 is a deficient number, since it is larger than the sum of its proper divisors (9923943719).

223073450521 is a wasteful number, since it uses less digits than its factorization.

223073450521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23304.

The product of its (nonzero) digits is 50400, while the sum is 34.

The spelling of 223073450521 in words is "two hundred twenty-three billion, seventy-three million, four hundred fifty thousand, five hundred twenty-one".