2231111184947 has 2 divisors, whose sum is σ = 2231111184948. Its totient is φ = 2231111184946.

The previous prime is 2231111184917. The next prime is 2231111184959. The reversal of 2231111184947 is 7494811111322.

2231111184947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2231111184947 - 2¹⁴ = 2231111168563 is a prime.

It is a super-3 number, since 3×2231111184947³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231111184898 and 2231111184907.

It is not a weakly prime, because it can be changed into another prime (2231111184917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115555592473 + 1115555592474.

It is an arithmetic number, because the mean of its divisors is an integer number (1115555592474).

Almost surely, 2^{2231111184947} is an apocalyptic number.

2231111184947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231111184947 is an equidigital number, since it uses as much as digits as its factorization.

2231111184947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 44.

The spelling of 2231111184947 in words is "two trillion, two hundred thirty-one billion, one hundred eleven million, one hundred eighty-four thousand, nine hundred forty-seven".