11011485131 has 4 divisors (see below), whose sum is σ = 11591037000. Its totient is φ = 10431933264.

The previous prime is 11011485127. The next prime is 11011485151. The reversal of 11011485131 is 13158411011.

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 11011485131 - 2² = 11011485127 is a prime.

It is a super-2 number, since 2×11011485131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11011485131.

It is not an unprimeable number, because it can be changed into a prime (11011485101) 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, 289775906 + ... + 289775943.

It is an arithmetic number, because the mean of its divisors is an integer number (2897759250).

Almost surely, 2^11011485131 is an apocalyptic number.

11011485131 is a deficient number, since it is larger than the sum of its proper divisors (579551869).

11011485131 is an equidigital number, since it uses as much as digits as its factorization.

11011485131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579551868.

The product of its (nonzero) digits is 480, while the sum is 26.

Adding to 11011485131 its reverse (13158411011), we get a palindrome (24169896142).

The spelling of 11011485131 in words is "eleven billion, eleven million, four hundred eighty-five thousand, one hundred thirty-one".