1020001111110 has 160 divisors (see below), whose sum is σ = 2764887713280. Its totient is φ = 269800435008.

The previous prime is 1020001111093. The next prime is 1020001111169. The reversal of 1020001111110 is 111111000201.

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

It is a junction number, because it is equal to n+sod(n) for n = 1020001111092 and 1020001111101.

It is a congruent number.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 149403517 + ... + 149410343.

It is an arithmetic number, because the mean of its divisors is an integer number (17280548208).

Almost surely, 2^{1020001111110} is an apocalyptic number.

1020001111110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020001111110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1382443856640).

1020001111110 is an abundant number, since it is smaller than the sum of its proper divisors (1744886602170).

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

1020001111110 is a wasteful number, since it uses less digits than its factorization.

1020001111110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8312 (or 8303 counting only the distinct ones).

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

Adding to 1020001111110 its reverse (111111000201), we get a palindrome (1131112111311).

The spelling of 1020001111110 in words is "one trillion, twenty billion, one million, one hundred eleven thousand, one hundred ten".