11100021137 has 2 divisors, whose sum is σ = 11100021138. Its totient is φ = 11100021136.

The previous prime is 11100021091. The next prime is 11100021151. The reversal of 11100021137 is 73112000111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9625768321 + 1474252816 = 98111^2 + 38396^2 .

It is a cyclic number.

It is not a de Polignac number, because 11100021137 - 2⁶ = 11100021073 is a prime.

It is not a weakly prime, because it can be changed into another prime (11100021167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550010568 + 5550010569.

It is an arithmetic number, because the mean of its divisors is an integer number (5550010569).

Almost surely, 2^11100021137 is an apocalyptic number.

It is an amenable number.

11100021137 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100021137 is an equidigital number, since it uses as much as digits as its factorization.

11100021137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42, while the sum is 17.

Adding to 11100021137 its reverse (73112000111), we get a palindrome (84212021248).

The spelling of 11100021137 in words is "eleven billion, one hundred million, twenty-one thousand, one hundred thirty-seven".