101242042 has 32 divisors (see below), whose sum is σ = 170449920. Its totient is φ = 44706480.

The previous prime is 101242019. The next prime is 101242069. The reversal of 101242042 is 240242101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184813 + ... + 185359.

It is an arithmetic number, because the mean of its divisors is an integer number (5326560).

Almost surely, 2^101242042 is an apocalyptic number.

101242042 is a deficient number, since it is larger than the sum of its proper divisors (69207878).

101242042 is a wasteful number, since it uses less digits than its factorization.

101242042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 101242042 is about 10061.9104547795. The cubic root of 101242042 is about 466.0726645330.

Adding to 101242042 its reverse (240242101), we get a palindrome (341484143).

The spelling of 101242042 in words is "one hundred one million, two hundred forty-two thousand, forty-two".