101111020 has 12 divisors (see below), whose sum is σ = 212333184. Its totient is φ = 40444400.

The previous prime is 101111011. The next prime is 101111033. The reversal of 101111020 is 20111101.

It is a junction number, because it is equal to n+sod(n) for n = 101110994 and 101111012.

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 3 ways as a sum of consecutive naturals, for example, 2527756 + ... + 2527795.

It is an arithmetic number, because the mean of its divisors is an integer number (17694432).

Almost surely, 2^101111020 is an apocalyptic number.

101111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101111020 is an abundant number, since it is smaller than the sum of its proper divisors (111222164).

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

101111020 is a wasteful number, since it uses less digits than its factorization.

101111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5055560 (or 5055558 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 101111020 is about 10055.3975555420. The cubic root of 101111020 is about 465.8715223557.

Adding to 101111020 its reverse (20111101), we get a palindrome (121222121).

The spelling of 101111020 in words is "one hundred one million, one hundred eleven thousand, twenty".