11381083507783 has 4 divisors (see below), whose sum is σ = 12415727463048. Its totient is φ = 10346439552520.

The previous prime is 11381083507691. The next prime is 11381083507817. The reversal of 11381083507783 is 38770538018311.

11381083507783 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11381083507783 - 2²¹ = 11381081410631 is a prime.

It is a super-2 number, since 2×11381083507783² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11381083502783) 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, 517321977616 + ... + 517321977637.

It is an arithmetic number, because the mean of its divisors is an integer number (3103931865762).

Almost surely, 2^{11381083507783} is an apocalyptic number.

11381083507783 is a deficient number, since it is larger than the sum of its proper divisors (1034643955265).

11381083507783 is a wasteful number, since it uses less digits than its factorization.

11381083507783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034643955264.

The product of its (nonzero) digits is 3386880, while the sum is 55.

The spelling of 11381083507783 in words is "eleven trillion, three hundred eighty-one billion, eighty-three million, five hundred seven thousand, seven hundred eighty-three".