231242322 has 32 divisors (see below), whose sum is σ = 488724480. Its totient is φ = 72792720.

The previous prime is 231242309. The next prime is 231242357. The reversal of 231242322 is 223242132.

231242322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×231242322² = 106946022967903368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297 + ... + 21507.

It is an arithmetic number, because the mean of its divisors is an integer number (15272640).

Almost surely, 2^231242322 is an apocalyptic number.

231242322 is an abundant number, since it is smaller than the sum of its proper divisors (257482158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231242322 is a wasteful number, since it uses less digits than its factorization.

231242322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21318.

The product of its digits is 1152, while the sum is 21.

The square root of 231242322 is about 15206.6538725651. The cubic root of 231242322 is about 613.7937198528.

Adding to 231242322 its reverse (223242132), we get a palindrome (454484454).

The spelling of 231242322 in words is "two hundred thirty-one million, two hundred forty-two thousand, three hundred twenty-two".