11503055141 has 4 divisors (see below), whose sum is σ = 11614735392. Its totient is φ = 11391374892.

The previous prime is 11503055129. The next prime is 11503055149. The reversal of 11503055141 is 14155030511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11503055141 - 2⁶ = 11503055077 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 11503055141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11503055149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55839971 + ... + 55840176.

It is an arithmetic number, because the mean of its divisors is an integer number (2903683848).

Almost surely, 2^11503055141 is an apocalyptic number.

It is an amenable number.

11503055141 is a deficient number, since it is larger than the sum of its proper divisors (111680251).

11503055141 is a wasteful number, since it uses less digits than its factorization.

11503055141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111680250.

The product of its (nonzero) digits is 1500, while the sum is 26.

Adding to 11503055141 its reverse (14155030511), we get a palindrome (25658085652).

The spelling of 11503055141 in words is "eleven billion, five hundred three million, fifty-five thousand, one hundred forty-one".