11781020363 has 12 divisors (see below), whose sum is σ = 13711462632. Its totient is φ = 10092852000.

The previous prime is 11781020351. The next prime is 11781020369. The reversal of 11781020363 is 36302018711.

It is not a de Polignac number, because 11781020363 - 2⁴ = 11781020347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11781020369) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36863 + ... + 157863.

It is an arithmetic number, because the mean of its divisors is an integer number (1142621886).

Almost surely, 2^11781020363 is an apocalyptic number.

11781020363 is a deficient number, since it is larger than the sum of its proper divisors (1930442269).

11781020363 is a wasteful number, since it uses less digits than its factorization.

11781020363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123002 (or 122995 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The spelling of 11781020363 in words is "eleven billion, seven hundred eighty-one million, twenty thousand, three hundred sixty-three".