11151132457 has 4 divisors (see below), whose sum is σ = 11152594180. Its totient is φ = 11149670736.

The previous prime is 11151132451. The next prime is 11151132463. The reversal of 11151132457 is 75423115111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75423115111 = 3967 ⋅19012633.

It is an interprime number because it is at equal distance from previous prime (11151132451) and next prime (11151132463).

It can be written as a sum of positive squares in 2 ways, for example, as 7983243801 + 3167888656 = 89349^2 + 56284^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11151132457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11151132451) 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, 719358 + ... + 734695.

It is an arithmetic number, because the mean of its divisors is an integer number (2788148545).

Almost surely, 2^11151132457 is an apocalyptic number.

It is an amenable number.

11151132457 is a deficient number, since it is larger than the sum of its proper divisors (1461723).

11151132457 is an equidigital number, since it uses as much as digits as its factorization.

11151132457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461722.

The product of its digits is 4200, while the sum is 31.

Adding to 11151132457 its reverse (75423115111), we get a palindrome (86574247568).

The spelling of 11151132457 in words is "eleven billion, one hundred fifty-one million, one hundred thirty-two thousand, four hundred fifty-seven".