1111450020 has 48 divisors (see below), whose sum is σ = 3118859520. Its totient is φ = 295739136.

The previous prime is 1111450019. The next prime is 1111450051. The reversal of 1111450020 is 200541111.

It is a happy number.

It is a super-2 number, since 2×1111450020² = 2470642293916000800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 7776 + ... + 47784.

It is an arithmetic number, because the mean of its divisors is an integer number (64976240).

Almost surely, 2^1111450020 is an apocalyptic number.

1111450020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111450020 is an abundant number, since it is smaller than the sum of its proper divisors (2007409500).

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

1111450020 is a wasteful number, since it uses less digits than its factorization.

1111450020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40484 (or 40482 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 1111450020 is about 33338.4165790759. The cubic root of 1111450020 is about 1035.8494648179.

Adding to 1111450020 its reverse (200541111), we get a palindrome (1311991131).

The spelling of 1111450020 in words is "one billion, one hundred eleven million, four hundred fifty thousand, twenty".