1111302020 has 48 divisors (see below), whose sum is σ = 2480499840. Its totient is φ = 417021696.

The previous prime is 1111301987. The next prime is 1111302041. The reversal of 1111302020 is 202031111.

It is a junction number, because it is equal to n+sod(n) for n = 1111301992 and 1111302010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24944 + ... + 53336.

It is an arithmetic number, because the mean of its divisors is an integer number (51677080).

Almost surely, 2^1111302020 is an apocalyptic number.

1111302020 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 1111302020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1240249920).

1111302020 is an abundant number, since it is smaller than the sum of its proper divisors (1369197820).

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

1111302020 is a wasteful number, since it uses less digits than its factorization.

1111302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28524 (or 28522 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1111302020 is about 33336.1968436713. The cubic root of 1111302020 is about 1035.8034850847.

Adding to 1111302020 its reverse (202031111), we get a palindrome (1313333131).

The spelling of 1111302020 in words is "one billion, one hundred eleven million, three hundred two thousand, twenty".