11421213143 has 8 divisors (see below), whose sum is σ = 11443251456. Its totient is φ = 11399198200.

The previous prime is 11421213137. The next prime is 11421213149. The reversal of 11421213143 is 34131212411.

11421213143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11421213137) and next prime (11421213149).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11421213143 - 2²² = 11417018839 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 (11421213149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1198628 + ... + 1208118.

It is an arithmetic number, because the mean of its divisors is an integer number (1430406432).

Almost surely, 2^11421213143 is an apocalyptic number.

11421213143 is a deficient number, since it is larger than the sum of its proper divisors (22038313).

11421213143 is a wasteful number, since it uses less digits than its factorization.

11421213143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11685.

The product of its digits is 576, while the sum is 23.

Adding to 11421213143 its reverse (34131212411), we get a palindrome (45552425554).

The spelling of 11421213143 in words is "eleven billion, four hundred twenty-one million, two hundred thirteen thousand, one hundred forty-three".