11051312403 has 8 divisors (see below), whose sum is σ = 15133328848. Its totient is φ = 7168418784.

The previous prime is 11051312401. The next prime is 11051312473. The reversal of 11051312403 is 30421315011.

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

It is not a de Polignac number, because 11051312403 - 2¹ = 11051312401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11051312403.

It is not an unprimeable number, because it can be changed into a prime (11051312401) 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, 49780576 + ... + 49780797.

It is an arithmetic number, because the mean of its divisors is an integer number (1891666106).

Almost surely, 2^11051312403 is an apocalyptic number.

11051312403 is a deficient number, since it is larger than the sum of its proper divisors (4082016445).

11051312403 is an equidigital number, since it uses as much as digits as its factorization.

11051312403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99561413.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 11051312403 its reverse (30421315011), we get a palindrome (41472627414).

The spelling of 11051312403 in words is "eleven billion, fifty-one million, three hundred twelve thousand, four hundred three".