1111431748547 has 2 divisors, whose sum is σ = 1111431748548. Its totient is φ = 1111431748546.

The previous prime is 1111431748543. The next prime is 1111431748571. The reversal of 1111431748547 is 7458471341111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111431748547 - 2² = 1111431748543 is a prime.

It is a super-4 number, since 4×1111431748547⁴ (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (1111431748543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555715874273 + 555715874274.

It is an arithmetic number, because the mean of its divisors is an integer number (555715874274).

Almost surely, 2^{1111431748547} is an apocalyptic number.

1111431748547 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111431748547 is an equidigital number, since it uses as much as digits as its factorization.

1111431748547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 376320, while the sum is 47.

The spelling of 1111431748547 in words is "one trillion, one hundred eleven billion, four hundred thirty-one million, seven hundred forty-eight thousand, five hundred forty-seven".