20201241042 has 24 divisors (see below), whose sum is σ = 43829096844. Its totient is φ = 6724556064.

The previous prime is 20201241001. The next prime is 20201241043. The reversal of 20201241042 is 24014210202.

20201241042 is a `hidden beast` number, since 202 + 0 + 12 + 410 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20201221161 + 19881 = 142131^2 + 141^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20201241043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 752353 + ... + 778740.

Almost surely, 2^20201241042 is an apocalyptic number.

20201241042 is an abundant number, since it is smaller than the sum of its proper divisors (23627855802).

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

20201241042 is a wasteful number, since it uses less digits than its factorization.

20201241042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531834 (or 1531831 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20201241042 its reverse (24014210202), we get a palindrome (44215451244).

The spelling of 20201241042 in words is "twenty billion, two hundred one million, two hundred forty-one thousand, forty-two".