11930461138 has 4 divisors (see below), whose sum is σ = 17895691710. Its totient is φ = 5965230568.

The previous prime is 11930461091. The next prime is 11930461139. The reversal of 11930461138 is 83116403911.

It is a happy number.

11930461138 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 can be written as a sum of positive squares in only one way, i.e., 11906519689 + 23941449 = 109117^2 + 4893^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11930461097 and 11930461106.

It is not an unprimeable number, because it can be changed into a prime (11930461139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2982615283 + ... + 2982615286.

Almost surely, 2^11930461138 is an apocalyptic number.

11930461138 is a deficient number, since it is larger than the sum of its proper divisors (5965230572).

11930461138 is an equidigital number, since it uses as much as digits as its factorization.

11930461138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5965230571.

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 11930461138 in words is "eleven billion, nine hundred thirty million, four hundred sixty-one thousand, one hundred thirty-eight".