11385748281 has 8 divisors (see below), whose sum is σ = 15331305024. Its totient is φ = 7515345200.

The previous prime is 11385748193. The next prime is 11385748291. The reversal of 11385748281 is 18284758311.

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 11385748281 - 2¹⁴ = 11385731897 is a prime.

It is a super-2 number, since 2×11385748281² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11385748281.

It is not an unprimeable number, because it can be changed into a prime (11385748291) 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, 18788061 + ... + 18788666.

It is an arithmetic number, because the mean of its divisors is an integer number (1916413128).

Almost surely, 2^11385748281 is an apocalyptic number.

It is an amenable number.

11385748281 is a deficient number, since it is larger than the sum of its proper divisors (3945556743).

11385748281 is a wasteful number, since it uses less digits than its factorization.

11385748281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37576831.

The product of its digits is 430080, while the sum is 48.

It can be divided in two parts, 1138574 and 8281, that added together give a triangular number (1146855 = T₁₅₁₄).

The spelling of 11385748281 in words is "eleven billion, three hundred eighty-five million, seven hundred forty-eight thousand, two hundred eighty-one".