11101465421 has 2 divisors, whose sum is σ = 11101465422. Its totient is φ = 11101465420.

The previous prime is 11101465411. The next prime is 11101465439. The reversal of 11101465421 is 12456410111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10310168521 + 791296900 = 101539^2 + 28130^2 .

It is a cyclic number.

It is not a de Polignac number, because 11101465421 - 2²² = 11097271117 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11101465411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550732710 + 5550732711.

It is an arithmetic number, because the mean of its divisors is an integer number (5550732711).

Almost surely, 2^11101465421 is an apocalyptic number.

It is an amenable number.

11101465421 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101465421 is an equidigital number, since it uses as much as digits as its factorization.

11101465421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 26.

Adding to 11101465421 its reverse (12456410111), we get a palindrome (23557875532).

The spelling of 11101465421 in words is "eleven billion, one hundred one million, four hundred sixty-five thousand, four hundred twenty-one".