231201442 has 8 divisors (see below), whose sum is σ = 346920732. Its totient is φ = 115561200.

The previous prime is 231201433. The next prime is 231201457. The reversal of 231201442 is 244102132.

It can be written as a sum of positive squares in 2 ways, for example, as 228644641 + 2556801 = 15121^2 + 1599^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11809 + ... + 24532.

Almost surely, 2^231201442 is an apocalyptic number.

231201442 is a deficient number, since it is larger than the sum of its proper divisors (115719290).

231201442 is a wasteful number, since it uses less digits than its factorization.

231201442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39524.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 231201442 is about 15205.3096647191. The cubic root of 231201442 is about 613.7575480342.

Adding to 231201442 its reverse (244102132), we get a palindrome (475303574).

The spelling of 231201442 in words is "two hundred thirty-one million, two hundred one thousand, four hundred forty-two".