11611057307 has 4 divisors (see below), whose sum is σ = 12294060696.
Its totient is φ = 10928053920.
The previous prime is 11611057253. The next prime is 11611057387. The reversal of 11611057307 is 70375011611.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 11611057307 - 216 = 11610991771 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (11611057387) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341501669 + ... + 341501702.
It is an arithmetic number, because the mean of its divisors is an integer number (3073515174).
Almost surely, 211611057307 is an apocalyptic number.
11611057307 is a gapful number since it is divisible by the number (17) formed by its first and last digit.
11611057307 is a deficient number, since it is larger than the sum of its proper divisors (683003389).
11611057307 is an equidigital number, since it uses as much as digits as its factorization.
11611057307 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 683003388.
The product of its (nonzero) digits is 4410, while the sum is 32.
Adding to 11611057307 its reverse (70375011611), we get a palindrome (81986068918).
The spelling of 11611057307 in words is "eleven billion, six hundred eleven million, fifty-seven thousand, three hundred seven".