2020124542 has 4 divisors (see below), whose sum is σ = 3030186816. Its totient is φ = 1010062270.

The previous prime is 2020124537. The next prime is 2020124573. The reversal of 2020124542 is 2454210202.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505031134 + ... + 505031137.

It is an arithmetic number, because the mean of its divisors is an integer number (757546704).

Almost surely, 2^2020124542 is an apocalyptic number.

2020124542 is a deficient number, since it is larger than the sum of its proper divisors (1010062274).

2020124542 is a wasteful number, since it uses less digits than its factorization.

2020124542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010062273.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 2020124542 is about 44945.7955986987. The cubic root of 2020124542 is about 1264.1328436028.

Adding to 2020124542 its reverse (2454210202), we get a palindrome (4474334744).

The spelling of 2020124542 in words is "two billion, twenty million, one hundred twenty-four thousand, five hundred forty-two".