231321010 has 32 divisors (see below), whose sum is σ = 441288000. Its totient is φ = 87059520.

The previous prime is 231321001. The next prime is 231321019. The reversal of 231321010 is 10123132.

It is an interprime number because it is at equal distance from previous prime (231321001) and next prime (231321019).

It is not an unprimeable number, because it can be changed into a prime (231321019) 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, 24225 + ... + 32395.

It is an arithmetic number, because the mean of its divisors is an integer number (13790250).

Almost surely, 2^231321010 is an apocalyptic number.

231321010 is a deficient number, since it is larger than the sum of its proper divisors (209966990).

231321010 is a wasteful number, since it uses less digits than its factorization.

231321010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8346.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 231321010 is about 15209.2409409543. The cubic root of 231321010 is about 613.8633332963.

Adding to 231321010 its reverse (10123132), we get a palindrome (241444142).

It can be divided in two parts, 23132 and 1010, that added together give a palindrome (24142).

The spelling of 231321010 in words is "two hundred thirty-one million, three hundred twenty-one thousand, ten".