201042042 has 16 divisors (see below), whose sum is σ = 402753792. Its totient is φ = 66902400.

The previous prime is 201042013. The next prime is 201042113. The reversal of 201042042 is 240240102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23959 + ... + 31242.

It is an arithmetic number, because the mean of its divisors is an integer number (25172112).

Almost surely, 2^201042042 is an apocalyptic number.

201042042 is an abundant number, since it is smaller than the sum of its proper divisors (201711750).

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

201042042 is a wasteful number, since it uses less digits than its factorization.

201042042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55813.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 201042042 is about 14178.9295082527. The cubic root of 201042042 is about 585.8174385785.

Adding to 201042042 its reverse (240240102), we get a palindrome (441282144).

The spelling of 201042042 in words is "two hundred one million, forty-two thousand, forty-two".