230020031 has 4 divisors (see below), whose sum is σ = 237440064. Its totient is φ = 222600000.

The previous prime is 230020003. The next prime is 230020039. The reversal of 230020031 is 130020032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 230020031 - 2¹⁴ = 230003647 is a prime.

It is a super-2 number, since 2×230020031² = 105818429322481922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230019994 and 230020021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230020039) 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, 3709970 + ... + 3710031.

It is an arithmetic number, because the mean of its divisors is an integer number (59360016).

Almost surely, 2^230020031 is an apocalyptic number.

230020031 is a deficient number, since it is larger than the sum of its proper divisors (7420033).

230020031 is an equidigital number, since it uses as much as digits as its factorization.

230020031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7420032.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 230020031 is about 15166.4112762380. The cubic root of 230020031 is about 612.7103537381.

Adding to 230020031 its reverse (130020032), we get a palindrome (360040063).

Subtracting from 230020031 its reverse (130020032), we obtain a palindrome (99999999).

The spelling of 230020031 in words is "two hundred thirty million, twenty thousand, thirty-one".