201430123042 has 16 divisors (see below), whose sum is σ = 307871167320. Its totient is φ = 98820698112.

The previous prime is 201430123033. The next prime is 201430123043. The reversal of 201430123042 is 240321034102.

It can be written as a sum of positive squares in 4 ways, for example, as 183594253441 + 17835869601 = 428479^2 + 133551^2 .

It is not an unprimeable number, because it can be changed into a prime (201430123043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3546067 + ... + 3602422.

Almost surely, 2^201430123042 is an apocalyptic number.

201430123042 is a deficient number, since it is larger than the sum of its proper divisors (106441044278).

201430123042 is a wasteful number, since it uses less digits than its factorization.

201430123042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7148757.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 201430123042 its reverse (240321034102), we get a palindrome (441751157144).

The spelling of 201430123042 in words is "two hundred one billion, four hundred thirty million, one hundred twenty-three thousand, forty-two".