1020200542 has 24 divisors (see below), whose sum is σ = 1581715080. Its totient is φ = 493471440.

The previous prime is 1020200521. The next prime is 1020200563. The reversal of 1020200542 is 2450020201.

It is an interprime number because it is at equal distance from previous prime (1020200521) and next prime (1020200563).

It is a congruent number.

It is an unprimeable number.

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, 401817 + ... + 404347.

It is an arithmetic number, because the mean of its divisors is an integer number (65904795).

Almost surely, 2^1020200542 is an apocalyptic number.

1020200542 is a deficient number, since it is larger than the sum of its proper divisors (561514538).

1020200542 is a wasteful number, since it uses less digits than its factorization.

1020200542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2728 (or 2685 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1020200542 is about 31940.5782978330. The cubic root of 1020200542 is about 1006.6886758683.

Adding to 1020200542 its reverse (2450020201), we get a palindrome (3470220743).

The spelling of 1020200542 in words is "one billion, twenty million, two hundred thousand, five hundred forty-two".