11401203505 has 8 divisors (see below), whose sum is σ = 13710009600. Its totient is φ = 9101919216.

The previous prime is 11401203487. The next prime is 11401203511. The reversal of 11401203505 is 50530210411.

It is a happy number.

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 11401203505 - 2⁷ = 11401203377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2377815 + ... + 2382604.

It is an arithmetic number, because the mean of its divisors is an integer number (1713751200).

Almost surely, 2^11401203505 is an apocalyptic number.

It is an amenable number.

11401203505 is a deficient number, since it is larger than the sum of its proper divisors (2308806095).

11401203505 is an equidigital number, since it uses as much as digits as its factorization.

11401203505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4760903.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 11401203505 its reverse (50530210411), we get a palindrome (61931413916).

The spelling of 11401203505 in words is "eleven billion, four hundred one million, two hundred three thousand, five hundred five".