11908783013 has 2 divisors, whose sum is σ = 11908783014. Its totient is φ = 11908783012.

The previous prime is 11908783009. The next prime is 11908783087. The reversal of 11908783013 is 31038780911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11903246404 + 5536609 = 109102^2 + 2353^2 .

It is a cyclic number.

It is not a de Polignac number, because 11908783013 - 2² = 11908783009 is a prime.

It is a super-2 number, since 2×11908783013² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11908785013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5954391506 + 5954391507.

It is an arithmetic number, because the mean of its divisors is an integer number (5954391507).

Almost surely, 2^11908783013 is an apocalyptic number.

It is an amenable number.

11908783013 is a deficient number, since it is larger than the sum of its proper divisors (1).

11908783013 is an equidigital number, since it uses as much as digits as its factorization.

11908783013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 41.

The spelling of 11908783013 in words is "eleven billion, nine hundred eight million, seven hundred eighty-three thousand, thirteen".