11420203342401 has 40 divisors (see below), whose sum is σ = 19497250210944. Its totient is φ = 6525721843200.

The previous prime is 11420203342399. The next prime is 11420203342403. The reversal of 11420203342401 is 10424330202411.

11420203342401 is a `hidden beast` number, since 1 + 1 + 4 + 20 + 203 + 34 + 2 + 401 = 666.

It is an interprime number because it is at equal distance from previous prime (11420203342399) and next prime (11420203342403).

It is not a de Polignac number, because 11420203342401 - 2¹ = 11420203342399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (11420203342403) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 44324916 + ... + 44581818.

Almost surely, 2^{11420203342401} is an apocalyptic number.

It is an amenable number.

11420203342401 is a deficient number, since it is larger than the sum of its proper divisors (8077046868543).

11420203342401 is an equidigital number, since it uses as much as digits as its factorization.

11420203342401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335323 (or 335314 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 11420203342401 its reverse (10424330202411), we get a palindrome (21844533544812).

The spelling of 11420203342401 in words is "eleven trillion, four hundred twenty billion, two hundred three million, three hundred forty-two thousand, four hundred one".