1111420301720 has 64 divisors (see below), whose sum is σ = 2535400941120. Its totient is φ = 438400456704.

The previous prime is 1111420301713. The next prime is 1111420301729. The reversal of 1111420301720 is 271030241111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111420301729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18123029 + ... + 18184251.

It is an arithmetic number, because the mean of its divisors is an integer number (39615639705).

Almost surely, 2^{1111420301720} is an apocalyptic number.

1111420301720 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 1111420301720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1267700470560).

1111420301720 is an abundant number, since it is smaller than the sum of its proper divisors (1423980639400).

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

1111420301720 is a wasteful number, since it uses less digits than its factorization.

1111420301720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67524 (or 67520 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 23.

Adding to 1111420301720 its reverse (271030241111), we get a palindrome (1382450542831).

The spelling of 1111420301720 in words is "one trillion, one hundred eleven billion, four hundred twenty million, three hundred one thousand, seven hundred twenty".