111403362551 has 4 divisors (see below), whose sum is σ = 119972851992. Its totient is φ = 102833873112.

The previous prime is 111403362533. The next prime is 111403362589. The reversal of 111403362551 is 155263304111.

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 111403362551 - 2⁶ = 111403362487 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 (111403368551) 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, 4284744701 + ... + 4284744726.

It is an arithmetic number, because the mean of its divisors is an integer number (29993212998).

Almost surely, 2^111403362551 is an apocalyptic number.

111403362551 is a deficient number, since it is larger than the sum of its proper divisors (8569489441).

111403362551 is an equidigital number, since it uses as much as digits as its factorization.

111403362551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8569489440.

The product of its (nonzero) digits is 10800, while the sum is 32.

Adding to 111403362551 its reverse (155263304111), we get a palindrome (266666666662).

The spelling of 111403362551 in words is "one hundred eleven billion, four hundred three million, three hundred sixty-two thousand, five hundred fifty-one".