11420127714557 has 4 divisors (see below), whose sum is σ = 11420171802780. Its totient is φ = 11420083626336.

The previous prime is 11420127714553. The next prime is 11420127714559. The reversal of 11420127714557 is 75541772102411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4265005605721 + 7155122108836 = 2065189^2 + 2674906^2 .

It is a cyclic number.

It is not a de Polignac number, because 11420127714557 - 2² = 11420127714553 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420127714553) 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, 21653258 + ... + 22174395.

It is an arithmetic number, because the mean of its divisors is an integer number (2855042950695).

Almost surely, 2^{11420127714557} is an apocalyptic number.

It is an amenable number.

11420127714557 is a deficient number, since it is larger than the sum of its proper divisors (44088223).

11420127714557 is an equidigital number, since it uses as much as digits as its factorization.

11420127714557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44088222.

The product of its (nonzero) digits is 548800, while the sum is 47.

Adding to 11420127714557 its reverse (75541772102411), we get a palindrome (86961899816968).

The spelling of 11420127714557 in words is "eleven trillion, four hundred twenty billion, one hundred twenty-seven million, seven hundred fourteen thousand, five hundred fifty-seven".