201431242 has 8 divisors (see below), whose sum is σ = 311893632. Its totient is φ = 97466700.

The previous prime is 201431231. The next prime is 201431257. The reversal of 201431242 is 242134102.

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, 1624384 + ... + 1624507.

It is an arithmetic number, because the mean of its divisors is an integer number (38986704).

Almost surely, 2^201431242 is an apocalyptic number.

201431242 is a deficient number, since it is larger than the sum of its proper divisors (110462390).

201431242 is a wasteful number, since it uses less digits than its factorization.

201431242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3248924.

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

The square root of 201431242 is about 14192.6474626829. The cubic root of 201431242 is about 586.1952255218.

Adding to 201431242 its reverse (242134102), we get a palindrome (443565344).

The spelling of 201431242 in words is "two hundred one million, four hundred thirty-one thousand, two hundred forty-two".