11542421413 has 4 divisors (see below), whose sum is σ = 11544268288. Its totient is φ = 11540574540.

The previous prime is 11542421383. The next prime is 11542421441. The reversal of 11542421413 is 31412424511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31412424511 = 13 ⋅2416340347.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11542421413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11542422413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914031 + ... + 926572.

It is an arithmetic number, because the mean of its divisors is an integer number (2886067072).

Almost surely, 2^11542421413 is an apocalyptic number.

It is an amenable number.

11542421413 is a deficient number, since it is larger than the sum of its proper divisors (1846875).

11542421413 is an equidigital number, since it uses as much as digits as its factorization.

11542421413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846874.

The product of its digits is 3840, while the sum is 28.

Adding to 11542421413 its reverse (31412424511), we get a palindrome (42954845924).

The spelling of 11542421413 in words is "eleven billion, five hundred forty-two million, four hundred twenty-one thousand, four hundred thirteen".