100111033020 has 48 divisors (see below), whose sum is σ = 280496659968. Its totient is φ = 26678583360.

The previous prime is 100111033019. The next prime is 100111033067. The reversal of 100111033020 is 20330111001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 100111032987 and 100111033005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461464 + ... + 642783.

It is an arithmetic number, because the mean of its divisors is an integer number (5843680416).

Almost surely, 2^100111033020 is an apocalyptic number.

100111033020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100111033020 is an abundant number, since it is smaller than the sum of its proper divisors (180385626948).

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

100111033020 is a wasteful number, since it uses less digits than its factorization.

100111033020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105770 (or 1105768 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 100111033020 its reverse (20330111001), we get a palindrome (120441144021).

The spelling of 100111033020 in words is "one hundred billion, one hundred eleven million, thirty-three thousand, twenty".