11125442667 has 4 divisors (see below), whose sum is σ = 14833923560. Its totient is φ = 7416961776.

The previous prime is 11125442659. The next prime is 11125442737. The reversal of 11125442667 is 76624452111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76624452111 = 3 ⋅25541484037.

It is not a de Polignac number, because 11125442667 - 2³ = 11125442659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11125442467) 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, 1854240442 + ... + 1854240447.

It is an arithmetic number, because the mean of its divisors is an integer number (3708480890).

Almost surely, 2^11125442667 is an apocalyptic number.

11125442667 is a deficient number, since it is larger than the sum of its proper divisors (3708480893).

11125442667 is an equidigital number, since it uses as much as digits as its factorization.

11125442667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3708480892.

The product of its digits is 80640, while the sum is 39.

Adding to 11125442667 its reverse (76624452111), we get a palindrome (87749894778).

The spelling of 11125442667 in words is "eleven billion, one hundred twenty-five million, four hundred forty-two thousand, six hundred sixty-seven".