101020111001100 has 432 divisors, whose sum is σ = 337156816971520. Its totient is φ = 25254295603200.

The previous prime is 101020111001059. The next prime is 101020111001107. The reversal of 101020111001100 is 1100111020101.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (101020111001107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 236183034 + ... + 236610366.

Almost surely, 2^{101020111001100} is an apocalyptic number.

101020111001100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101020111001100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168578408485760).

101020111001100 is an abundant number, since it is smaller than the sum of its proper divisors (236136705970420).

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

101020111001100 is a wasteful number, since it uses less digits than its factorization.

101020111001100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427650 (or 427640 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 101020111001100 its reverse (1100111020101), we get a palindrome (102120222021201).

The spelling of 101020111001100 in words is "one hundred one trillion, twenty billion, one hundred eleven million, one thousand, one hundred".