11138750983 has 4 divisors (see below), whose sum is σ = 11623044528. Its totient is φ = 10654457440.

The previous prime is 11138750981. The next prime is 11138750993. The reversal of 11138750983 is 38905783111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38905783111 = 13 ⋅2992752547.

It is not a de Polignac number, because 11138750983 - 2¹ = 11138750981 is a prime.

It is a super-2 number, since 2×11138750983² (a number of 21 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 (11138750981) 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, 242146738 + ... + 242146783.

It is an arithmetic number, because the mean of its divisors is an integer number (2905761132).

Almost surely, 2^11138750983 is an apocalyptic number.

11138750983 is a deficient number, since it is larger than the sum of its proper divisors (484293545).

11138750983 is an equidigital number, since it uses as much as digits as its factorization.

11138750983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484293544.

The product of its (nonzero) digits is 181440, while the sum is 46.

The spelling of 11138750983 in words is "eleven billion, one hundred thirty-eight million, seven hundred fifty thousand, nine hundred eighty-three".