11261150531 has 8 divisors (see below), whose sum is σ = 11306417664. Its totient is φ = 11215911240.

The previous prime is 11261150507. The next prime is 11261150533. The reversal of 11261150531 is 13505116211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11261150531 is a prime.

It is a super-2 number, since 2×11261150531² (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 11261150531.

It is not an unprimeable number, because it can be changed into a prime (11261150533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1237460 + ... + 1246526.

It is an arithmetic number, because the mean of its divisors is an integer number (1413302208).

Almost surely, 2^11261150531 is an apocalyptic number.

11261150531 is a deficient number, since it is larger than the sum of its proper divisors (45267133).

11261150531 is an equidigital number, since it uses as much as digits as its factorization.

11261150531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13921.

The product of its (nonzero) digits is 900, while the sum is 26.

Adding to 11261150531 its reverse (13505116211), we get a palindrome (24766266742).

The spelling of 11261150531 in words is "eleven billion, two hundred sixty-one million, one hundred fifty thousand, five hundred thirty-one".