11150148781 has 8 divisors (see below), whose sum is σ = 11545222680. Its totient is φ = 10755780672.

The previous prime is 11150148773. The next prime is 11150148791. The reversal of 11150148781 is 18784105111.

It can be written as a sum of positive squares in 4 ways, for example, as 6880702500 + 4269446281 = 82950^2 + 65341^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11150148781 - 2³ = 11150148773 is a prime.

It is a super-2 number, since 2×11150148781² (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 11150148781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11150148731) 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, 144190 + ... + 207583.

It is an arithmetic number, because the mean of its divisors is an integer number (1443152835).

Almost surely, 2^11150148781 is an apocalyptic number.

It is an amenable number.

11150148781 is a deficient number, since it is larger than the sum of its proper divisors (395073899).

11150148781 is a wasteful number, since it uses less digits than its factorization.

11150148781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352895.

The product of its (nonzero) digits is 8960, while the sum is 37.

The spelling of 11150148781 in words is "eleven billion, one hundred fifty million, one hundred forty-eight thousand, seven hundred eighty-one".