11502231453 has 12 divisors (see below), whose sum is σ = 16616776540. Its totient is φ = 7667027136.

The previous prime is 11502231449. The next prime is 11502231479. The reversal of 11502231453 is 35413220511.

11502231453 is a `hidden beast` number, since 11 + 502 + 2 + 3 + 145 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3424356324 + 8077875129 = 58518^2 + 89877^2 .

It is not a de Polignac number, because 11502231453 - 2² = 11502231449 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11502231443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26776 + ... + 154017.

Almost surely, 2^11502231453 is an apocalyptic number.

It is an amenable number.

11502231453 is a deficient number, since it is larger than the sum of its proper divisors (5114545087).

11502231453 is a wasteful number, since it uses less digits than its factorization.

11502231453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187868 (or 187865 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 11502231453 its reverse (35413220511), we get a palindrome (46915451964).

The spelling of 11502231453 in words is "eleven billion, five hundred two million, two hundred thirty-one thousand, four hundred fifty-three".