101111142 has 16 divisors (see below), whose sum is σ = 220606272. Its totient is φ = 30639720.

The previous prime is 101111123. The next prime is 101111203. The reversal of 101111142 is 241111101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 765928 + ... + 766059.

It is an arithmetic number, because the mean of its divisors is an integer number (13787892).

Almost surely, 2^101111142 is an apocalyptic number.

101111142 is an abundant number, since it is smaller than the sum of its proper divisors (119495130).

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

101111142 is a wasteful number, since it uses less digits than its factorization.

101111142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532003.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 101111142 is about 10055.4036219338. The cubic root of 101111142 is about 465.8717097283.

Adding to 101111142 its reverse (241111101), we get a palindrome (342222243).

The spelling of 101111142 in words is "one hundred one million, one hundred eleven thousand, one hundred forty-two".