11431355554 has 8 divisors (see below), whose sum is σ = 17545801680. Its totient is φ = 5582754996.

The previous prime is 11431355501. The next prime is 11431355561. The reversal of 11431355554 is 45555313411.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66461284 + ... + 66461455.

It is an arithmetic number, because the mean of its divisors is an integer number (2193225210).

Almost surely, 2^11431355554 is an apocalyptic number.

11431355554 is a deficient number, since it is larger than the sum of its proper divisors (6114446126).

11431355554 is a wasteful number, since it uses less digits than its factorization.

11431355554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132922784.

The product of its digits is 90000, while the sum is 37.

Adding to 11431355554 its reverse (45555313411), we get a palindrome (56986668965).

The spelling of 11431355554 in words is "eleven billion, four hundred thirty-one million, three hundred fifty-five thousand, five hundred fifty-four".