1020013542 has 12 divisors (see below), whose sum is σ = 2210029380. Its totient is φ = 340004508.

The previous prime is 1020013531. The next prime is 1020013543. The reversal of 1020013542 is 2453100201.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 56667419 = 1020013542 / (1 + 0 + 2 + 0 + 0 + 1 + 3 + 5 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020013543) 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 5 ways as a sum of consecutive naturals, for example, 28333692 + ... + 28333727.

It is an arithmetic number, because the mean of its divisors is an integer number (184169115).

Almost surely, 2^1020013542 is an apocalyptic number.

1020013542 is an abundant number, since it is smaller than the sum of its proper divisors (1190015838).

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

1020013542 is a wasteful number, since it uses less digits than its factorization.

1020013542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56667427 (or 56667424 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1020013542 is about 31937.6508528727. The cubic root of 1020013542 is about 1006.6271643393.

Adding to 1020013542 its reverse (2453100201), we get a palindrome (3473113743).

The spelling of 1020013542 in words is "one billion, twenty million, thirteen thousand, five hundred forty-two".