101111100001 has 2 divisors, whose sum is σ = 101111100002. Its totient is φ = 101111100000.

The previous prime is 101111099993. The next prime is 101111100007. The reversal of 101111100001 is 100001111101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85951580625 + 15159519376 = 293175^2 + 123124^2 .

It is a cyclic number.

It is not a de Polignac number, because 101111100001 - 2³ = 101111099993 is a prime.

It is not a weakly prime, because it can be changed into another prime (101111100007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50555550000 + 50555550001.

It is an arithmetic number, because the mean of its divisors is an integer number (50555550001).

Almost surely, 2^101111100001 is an apocalyptic number.

It is an amenable number.

101111100001 is a deficient number, since it is larger than the sum of its proper divisors (1).

101111100001 is an equidigital number, since it uses as much as digits as its factorization.

101111100001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 101111100001 its reverse (100001111101), we get a palindrome (201112211102).

The spelling of 101111100001 in words is "one hundred one billion, one hundred eleven million, one hundred thousand, one".