11551223411 has 8 divisors (see below), whose sum is σ = 14216890464. Its totient is φ = 9139429440.

The previous prime is 11551223407. The next prime is 11551223423. The reversal of 11551223411 is 11432215511.

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 11551223411 - 2² = 11551223407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11551223471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63468170 + ... + 63468351.

It is an arithmetic number, because the mean of its divisors is an integer number (1777111308).

Almost surely, 2^11551223411 is an apocalyptic number.

11551223411 is a deficient number, since it is larger than the sum of its proper divisors (2665667053).

11551223411 is a wasteful number, since it uses less digits than its factorization.

11551223411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126936541.

The product of its digits is 1200, while the sum is 26.

Adding to 11551223411 its reverse (11432215511), we get a palindrome (22983438922).

The spelling of 11551223411 in words is "eleven billion, five hundred fifty-one million, two hundred twenty-three thousand, four hundred eleven".