101442042 has 24 divisors (see below), whose sum is σ = 236698644. Its totient is φ = 31212864.

The previous prime is 101442037. The next prime is 101442059. The reversal of 101442042 is 240244101.

It can be written as a sum of positive squares in 2 ways, for example, as 90611361 + 10830681 = 9519^2 + 3291^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216523 + ... + 216990.

Almost surely, 2^101442042 is an apocalyptic number.

101442042 is an abundant number, since it is smaller than the sum of its proper divisors (135256602).

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

101442042 is a wasteful number, since it uses less digits than its factorization.

101442042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433534 (or 433531 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 101442042 is about 10071.8440218264. The cubic root of 101442042 is about 466.3793659049.

Adding to 101442042 its reverse (240244101), we get a palindrome (341686143).

The spelling of 101442042 in words is "one hundred one million, four hundred forty-two thousand, forty-two".