11311262503 has 8 divisors (see below), whose sum is σ = 11422612656. Its totient is φ = 11200449600.

The previous prime is 11311262401. The next prime is 11311262527. The reversal of 11311262503 is 30526211311.

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 11311262503 - 2⁹ = 11311261991 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 (11311262903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91933 + ... + 176278.

It is an arithmetic number, because the mean of its divisors is an integer number (1427826582).

Almost surely, 2^11311262503 is an apocalyptic number.

11311262503 is a deficient number, since it is larger than the sum of its proper divisors (111350153).

11311262503 is a wasteful number, since it uses less digits than its factorization.

11311262503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268625.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 11311262503 its reverse (30526211311), we get a palindrome (41837473814).

The spelling of 11311262503 in words is "eleven billion, three hundred eleven million, two hundred sixty-two thousand, five hundred three".