11420121101 has 2 divisors, whose sum is σ = 11420121102. Its totient is φ = 11420121100.

The previous prime is 11420121067. The next prime is 11420121109. The reversal of 11420121101 is 10112102411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9801990025 + 1618131076 = 99005^2 + 40226^2 .

It is a cyclic number.

It is not a de Polignac number, because 11420121101 - 2¹⁰ = 11420120077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11420121109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5710060550 + 5710060551.

It is an arithmetic number, because the mean of its divisors is an integer number (5710060551).

Almost surely, 2^11420121101 is an apocalyptic number.

It is an amenable number.

11420121101 is a deficient number, since it is larger than the sum of its proper divisors (1).

11420121101 is an equidigital number, since it uses as much as digits as its factorization.

11420121101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11420121101 its reverse (10112102411), we get a palindrome (21532223512).

The spelling of 11420121101 in words is "eleven billion, four hundred twenty million, one hundred twenty-one thousand, one hundred one".