111010002001 has 2 divisors, whose sum is σ = 111010002002. Its totient is φ = 111010002000.

The previous prime is 111010001983. The next prime is 111010002049. The reversal of 111010002001 is 100200010111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78301470976 + 32708531025 = 279824^2 + 180855^2 .

It is an emirp because it is prime and its reverse (100200010111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111010002001 - 2⁹ = 111010001489 is a prime.

It is not a weakly prime, because it can be changed into another prime (111010002071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505001000 + 55505001001.

It is an arithmetic number, because the mean of its divisors is an integer number (55505001001).

Almost surely, 2^111010002001 is an apocalyptic number.

It is an amenable number.

111010002001 is a deficient number, since it is larger than the sum of its proper divisors (1).

111010002001 is an equidigital number, since it uses as much as digits as its factorization.

111010002001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 111010002001 its reverse (100200010111), we get a palindrome (211210012112).

The spelling of 111010002001 in words is "one hundred eleven billion, ten million, two thousand, one".