1111110120020 has 24 divisors (see below), whose sum is σ = 2335248584424. Its totient is φ = 444078841856.

The previous prime is 1111110120007. The next prime is 1111110120023. The reversal of 1111110120020 is 200210111111.

It can be written as a sum of positive squares in 4 ways, for example, as 146951088964 + 964159031056 = 383342^2 + 981916^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1111110119983 and 1111110120010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111110120023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22800437 + ... + 22849116.

It is an arithmetic number, because the mean of its divisors is an integer number (97302024351).

Almost surely, 2^{1111110120020} is an apocalyptic number.

1111110120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111110120020 is an abundant number, since it is smaller than the sum of its proper divisors (1224138464404).

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

1111110120020 is a wasteful number, since it uses less digits than its factorization.

1111110120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45650779 (or 45650777 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1111110120020 its reverse (200210111111), we get a palindrome (1311320231131).

The spelling of 1111110120020 in words is "one trillion, one hundred eleven billion, one hundred ten million, one hundred twenty thousand, twenty".