11315203616 has 24 divisors (see below), whose sum is σ = 22820146524. Its totient is φ = 5519610880.

The previous prime is 11315203547. The next prime is 11315203633. The reversal of 11315203616 is 61630251311.

It can be written as a sum of positive squares in 2 ways, for example, as 11274192400 + 41011216 = 106180^2 + 6404^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4310885 + ... + 4313508.

Almost surely, 2^11315203616 is an apocalyptic number.

11315203616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11315203616 is an abundant number, since it is smaller than the sum of its proper divisors (11504942908).

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

11315203616 is an equidigital number, since it uses as much as digits as its factorization.

11315203616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8624444 (or 8624436 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

Adding to 11315203616 its reverse (61630251311), we get a palindrome (72945454927).

The spelling of 11315203616 in words is "eleven billion, three hundred fifteen million, two hundred three thousand, six hundred sixteen".