230021133530 has 8 divisors (see below), whose sum is σ = 414038040372. Its totient is φ = 92008453408.

The previous prime is 230021133497. The next prime is 230021133533. The reversal of 230021133530 is 35331120032.

It can be written as a sum of positive squares in 2 ways, for example, as 220587090889 + 9434042641 = 469667^2 + 97129^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 230021133496 and 230021133505.

It is not an unprimeable number, because it can be changed into a prime (230021133533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11501056667 + ... + 11501056686.

Almost surely, 2^230021133530 is an apocalyptic number.

230021133530 is a deficient number, since it is larger than the sum of its proper divisors (184016906842).

230021133530 is a wasteful number, since it uses less digits than its factorization.

230021133530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23002113360.

The product of its (nonzero) digits is 1620, while the sum is 23.

Adding to 230021133530 its reverse (35331120032), we get a palindrome (265352253562).

The spelling of 230021133530 in words is "two hundred thirty billion, twenty-one million, one hundred thirty-three thousand, five hundred thirty".