11110420402001 has 2 divisors, whose sum is σ = 11110420402002. Its totient is φ = 11110420402000.

The previous prime is 11110420401967. The next prime is 11110420402021. The reversal of 11110420402001 is 10020402401111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11108755680400 + 1664721601 = 3332980^2 + 40801^2 .

It is an emirp because it is prime and its reverse (10020402401111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11110420402001 - 2²² = 11110416207697 is a prime.

It is not a weakly prime, because it can be changed into another prime (11110420402021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555210201000 + 5555210201001.

It is an arithmetic number, because the mean of its divisors is an integer number (5555210201001).

Almost surely, 2^{11110420402001} is an apocalyptic number.

It is an amenable number.

11110420402001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11110420402001 is an equidigital number, since it uses as much as digits as its factorization.

11110420402001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11110420402001 its reverse (10020402401111), we get a palindrome (21130822803112).

The spelling of 11110420402001 in words is "eleven trillion, one hundred ten billion, four hundred twenty million, four hundred two thousand, one".