11542340401 has 6 divisors (see below), whose sum is σ = 12066001010. Its totient is φ = 11040499008.

The previous prime is 11542340393. The next prime is 11542340441. The reversal of 11542340401 is 10404324511.

It can be written as a sum of positive squares in only one way, i.e., 10655194176 + 887146225 = 103224^2 + 29785^2 .

It is not a de Polignac number, because 11542340401 - 2³ = 11542340393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11542340441) 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 in 5 ways as a sum of consecutive naturals, for example, 10909056 + ... + 10910113.

Almost surely, 2^11542340401 is an apocalyptic number.

It is an amenable number.

11542340401 is a deficient number, since it is larger than the sum of its proper divisors (523660609).

11542340401 is an equidigital number, since it uses as much as digits as its factorization.

11542340401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21819215 (or 21819192 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 11542340401 its reverse (10404324511), we get a palindrome (21946664912).

The spelling of 11542340401 in words is "eleven billion, five hundred forty-two million, three hundred forty thousand, four hundred one".