101200542 has 16 divisors (see below), whose sum is σ = 202781712. Its totient is φ = 33670080.

The previous prime is 101200537. The next prime is 101200549. The reversal of 101200542 is 245002101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101200549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12343 + ... + 18834.

It is an arithmetic number, because the mean of its divisors is an integer number (12673857).

Almost surely, 2^101200542 is an apocalyptic number.

101200542 is an abundant number, since it is smaller than the sum of its proper divisors (101581170).

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

101200542 is a wasteful number, since it uses less digits than its factorization.

101200542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31723.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 101200542 is about 10059.8480107803. The cubic root of 101200542 is about 466.0089734069.

Adding to 101200542 its reverse (245002101), we get a palindrome (346202643).

The spelling of 101200542 in words is "one hundred one million, two hundred thousand, five hundred forty-two".