101001111020 has 48 divisors (see below), whose sum is σ = 216148601088. Its totient is φ = 39630040320.

The previous prime is 101001111011. The next prime is 101001111037. The reversal of 101001111020 is 20111100101.

It is a happy number.

101001111020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 101001110989 and 101001111007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9828485 + ... + 9838755.

It is an arithmetic number, because the mean of its divisors is an integer number (4503095856).

Almost surely, 2^101001111020 is an apocalyptic number.

101001111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101001111020 is an abundant number, since it is smaller than the sum of its proper divisors (115147490068).

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

101001111020 is a wasteful number, since it uses less digits than its factorization.

101001111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19610 (or 19608 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 101001111020 its reverse (20111100101), we get a palindrome (121112211121).

The spelling of 101001111020 in words is "one hundred one billion, one million, one hundred eleven thousand, twenty".