1115521010 has 32 divisors (see below), whose sum is σ = 2042910720. Its totient is φ = 438504192.

The previous prime is 1115520979. The next prime is 1115521031. The reversal of 1115521010 is 101255111.

It is a self number, because there is not a number n which added to its sum of digits gives 1115521010.

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, 131786 + ... + 139994.

It is an arithmetic number, because the mean of its divisors is an integer number (63840960).

Almost surely, 2^1115521010 is an apocalyptic number.

1115521010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1115521010 is a deficient number, since it is larger than the sum of its proper divisors (927389710).

1115521010 is a wasteful number, since it uses less digits than its factorization.

1115521010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8450.

The product of its (nonzero) digits is 50, while the sum is 17.

The square root of 1115521010 is about 33399.4163122651. The cubic root of 1115521010 is about 1037.1126179455.

Adding to 1115521010 its reverse (101255111), we get a palindrome (1216776121).

The spelling of 1115521010 in words is "one billion, one hundred fifteen million, five hundred twenty-one thousand, ten".