11231551532403 has 8 divisors (see below), whose sum is σ = 16639335603600. Its totient is φ = 7487701021584.

The previous prime is 11231551532387. The next prime is 11231551532483. The reversal of 11231551532403 is 30423515513211.

It is a happy number.

11231551532403 is a `hidden beast` number, since 1 + 1 + 2 + 31 + 5 + 51 + 532 + 40 + 3 = 666.

It is not a de Polignac number, because 11231551532403 - 2⁴ = 11231551532387 is a prime.

It is a super-2 number, since 2×11231551532403² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11231551532483) 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 7 ways as a sum of consecutive naturals, for example, 207991695018 + ... + 207991695071.

It is an arithmetic number, because the mean of its divisors is an integer number (2079916950450).

Almost surely, 2^{11231551532403} is an apocalyptic number.

11231551532403 is a deficient number, since it is larger than the sum of its proper divisors (5407784071197).

11231551532403 is an equidigital number, since it uses as much as digits as its factorization.

11231551532403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415983390098 (or 415983390092 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 11231551532403 in words is "eleven trillion, two hundred thirty-one billion, five hundred fifty-one million, five hundred thirty-two thousand, four hundred three".