201142431042 has 64 divisors (see below), whose sum is σ = 475755552000. Its totient is φ = 55470320640.

The previous prime is 201142431037. The next prime is 201142431043. The reversal of 201142431042 is 240134241102.

201142431042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (201142431043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4176942 + ... + 4224822.

It is an arithmetic number, because the mean of its divisors is an integer number (7433680500).

Almost surely, 2^201142431042 is an apocalyptic number.

201142431042 is an abundant number, since it is smaller than the sum of its proper divisors (274613120958).

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

201142431042 is a wasteful number, since it uses less digits than its factorization.

201142431042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51371.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 201142431042 its reverse (240134241102), we get a palindrome (441276672144).

The spelling of 201142431042 in words is "two hundred one billion, one hundred forty-two million, four hundred thirty-one thousand, forty-two".