1111520000 has 90 divisors (see below), whose sum is σ = 2772884268. Its totient is φ = 444544000.

The previous prime is 1111519999. The next prime is 1111520009. The reversal of 1111520000 is 251111.

It is not an unprimeable number, because it can be changed into a prime (1111520009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 156527 + ... + 163473.

Almost surely, 2^1111520000 is an apocalyptic number.

1111520000 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 1111520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1386442134).

1111520000 is an abundant number, since it is smaller than the sum of its proper divisors (1661364268).

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

1111520000 is an frugal number, since it uses more digits than its factorization.

1111520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6983 (or 6954 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 11.

The square root of 1111520000 is about 33339.4661025038. The cubic root of 1111520000 is about 1035.8712043542.

Adding to 1111520000 its reverse (251111), we get a palindrome (1111771111).

The spelling of 1111520000 in words is "one billion, one hundred eleven million, five hundred twenty thousand".