11403203223131 has 4 divisors (see below), whose sum is σ = 11645824568352. Its totient is φ = 11160581877912.

The previous prime is 11403203223127. The next prime is 11403203223157. The reversal of 11403203223131 is 13132230230411.

It is a happy number.

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 11403203223131 - 2² = 11403203223127 is a prime.

It is a super-2 number, since 2×11403203223131² (a number of 27 digits) contains 22 as substring.

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 11403203223131.

It is not an unprimeable number, because it can be changed into a prime (11403203225131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121310672540 + ... + 121310672633.

It is an arithmetic number, because the mean of its divisors is an integer number (2911456142088).

Almost surely, 2^{11403203223131} is an apocalyptic number.

11403203223131 is a deficient number, since it is larger than the sum of its proper divisors (242621345221).

11403203223131 is an equidigital number, since it uses as much as digits as its factorization.

11403203223131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242621345220.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 11403203223131 its reverse (13132230230411), we get a palindrome (24535433453542).

The spelling of 11403203223131 in words is "eleven trillion, four hundred three billion, two hundred three million, two hundred twenty-three thousand, one hundred thirty-one".