201423423442 has 8 divisors (see below), whose sum is σ = 302157072000. Its totient is φ = 100704399444.

The previous prime is 201423423431. The next prime is 201423423463. The reversal of 201423423442 is 244324324102.

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

It is a super-2 number, since 2×201423423442² (a number of 23 digits) contains 22 as substring.

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, 3621642 + ... + 3676837.

It is an arithmetic number, because the mean of its divisors is an integer number (37769634000).

Almost surely, 2^201423423442 is an apocalyptic number.

201423423442 is a deficient number, since it is larger than the sum of its proper divisors (100733648558).

201423423442 is a wasteful number, since it uses less digits than its factorization.

201423423442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7312280.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 201423423442 its reverse (244324324102), we get a palindrome (445747747544).

The spelling of 201423423442 in words is "two hundred one billion, four hundred twenty-three million, four hundred twenty-three thousand, four hundred forty-two".