11430342557 has 2 divisors, whose sum is σ = 11430342558. Its totient is φ = 11430342556.

The previous prime is 11430342533. The next prime is 11430342577. The reversal of 11430342557 is 75524303411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7697254756 + 3733087801 = 87734^2 + 61099^2 .

It is a cyclic number.

It is not a de Polignac number, because 11430342557 - 2¹⁶ = 11430277021 is a prime.

It is a super-4 number, since 4×11430342557⁴ (a number of 41 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11430342577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5715171278 + 5715171279.

It is an arithmetic number, because the mean of its divisors is an integer number (5715171279).

Almost surely, 2^11430342557 is an apocalyptic number.

It is an amenable number.

11430342557 is a deficient number, since it is larger than the sum of its proper divisors (1).

11430342557 is an equidigital number, since it uses as much as digits as its factorization.

11430342557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 35.

Adding to 11430342557 its reverse (75524303411), we get a palindrome (86954645968).

The spelling of 11430342557 in words is "eleven billion, four hundred thirty million, three hundred forty-two thousand, five hundred fifty-seven".