230021031 has 8 divisors (see below), whose sum is σ = 306891760. Its totient is φ = 153248832.

The previous prime is 230021027. The next prime is 230021039. The reversal of 230021031 is 130120032.

It is a happy number.

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

It is not a de Polignac number, because 230021031 - 2² = 230021027 is a prime.

It is a super-2 number, since 2×230021031² = 105819349404605922, 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 = 230020998 and 230021016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230021039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19000 + ... + 28653.

It is an arithmetic number, because the mean of its divisors is an integer number (38361470).

Almost surely, 2^230021031 is an apocalyptic number.

230021031 is a deficient number, since it is larger than the sum of its proper divisors (76870729).

230021031 is a wasteful number, since it uses less digits than its factorization.

230021031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49265.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 230021031 is about 15166.4442437903. Note that the first 3 decimals coincide. The cubic root of 230021031 is about 612.7112416455.

Adding to 230021031 its reverse (130120032), we get a palindrome (360141063).

Subtracting from 230021031 its reverse (130120032), we obtain a palindrome (99900999).

The spelling of 230021031 in words is "two hundred thirty million, twenty-one thousand, thirty-one".