11621424311 has 4 divisors (see below), whose sum is σ = 13281627792. Its totient is φ = 9961220832.

The previous prime is 11621424173. The next prime is 11621424317. The reversal of 11621424311 is 11342412611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11621424311 - 2²⁶ = 11554315447 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 (11621424317) 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 3 ways as a sum of consecutive naturals, for example, 830101730 + ... + 830101743.

It is an arithmetic number, because the mean of its divisors is an integer number (3320406948).

Almost surely, 2^11621424311 is an apocalyptic number.

11621424311 is a deficient number, since it is larger than the sum of its proper divisors (1660203481).

11621424311 is an equidigital number, since it uses as much as digits as its factorization.

11621424311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660203480.

The product of its digits is 1152, while the sum is 26.

Adding to 11621424311 its reverse (11342412611), we get a palindrome (22963836922).

The spelling of 11621424311 in words is "eleven billion, six hundred twenty-one million, four hundred twenty-four thousand, three hundred eleven".