11423154551 has 8 divisors (see below), whose sum is σ = 11886927360. Its totient is φ = 10968387192.

The previous prime is 11423154529. The next prime is 11423154553. The reversal of 11423154551 is 15545132411.

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 11423154551 - 2⁶ = 11423154487 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 (11423154553) 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 7 ways as a sum of consecutive naturals, for example, 2248775 + ... + 2253848.

It is an arithmetic number, because the mean of its divisors is an integer number (1485865920).

Almost surely, 2^11423154551 is an apocalyptic number.

11423154551 is a deficient number, since it is larger than the sum of its proper divisors (463772809).

11423154551 is an equidigital number, since it uses as much as digits as its factorization.

11423154551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4502725.

The product of its digits is 12000, while the sum is 32.

Adding to 11423154551 its reverse (15545132411), we get a palindrome (26968286962).

The spelling of 11423154551 in words is "eleven billion, four hundred twenty-three million, one hundred fifty-four thousand, five hundred fifty-one".