11112354557 has 2 divisors, whose sum is σ = 11112354558. Its totient is φ = 11112354556.

The previous prime is 11112354509. The next prime is 11112354571. The reversal of 11112354557 is 75545321111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11098411801 + 13942756 = 105349^2 + 3734^2 .

It is a cyclic number.

It is not a de Polignac number, because 11112354557 - 2⁸ = 11112354301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11112354577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556177278 + 5556177279.

It is an arithmetic number, because the mean of its divisors is an integer number (5556177279).

Almost surely, 2^11112354557 is an apocalyptic number.

It is an amenable number.

11112354557 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112354557 is an equidigital number, since it uses as much as digits as its factorization.

11112354557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21000, while the sum is 35.

Adding to 11112354557 its reverse (75545321111), we get a palindrome (86657675668).

The spelling of 11112354557 in words is "eleven billion, one hundred twelve million, three hundred fifty-four thousand, five hundred fifty-seven".