11930885047 has 2 divisors, whose sum is σ = 11930885048. Its totient is φ = 11930885046.

The previous prime is 11930885003. The next prime is 11930885053. The reversal of 11930885047 is 74058803911.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11930885047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11930884988 and 11930885006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11930885347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5965442523 + 5965442524.

It is an arithmetic number, because the mean of its divisors is an integer number (5965442524).

Almost surely, 2^11930885047 is an apocalyptic number.

11930885047 is a deficient number, since it is larger than the sum of its proper divisors (1).

11930885047 is an equidigital number, since it uses as much as digits as its factorization.

11930885047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 11930885047 in words is "eleven billion, nine hundred thirty million, eight hundred eighty-five thousand, forty-seven".