11403131291 has 8 divisors (see below), whose sum is σ = 11936463264. Its totient is φ = 10872928000.

The previous prime is 11403131237. The next prime is 11403131297. The reversal of 11403131291 is 19213130411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11403131291 - 2¹⁸ = 11402869147 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 11403131291.

It is not an unprimeable number, because it can be changed into a prime (11403131297) 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, 774710 + ... + 789291.

It is an arithmetic number, because the mean of its divisors is an integer number (1492057908).

Almost surely, 2^11403131291 is an apocalyptic number.

11403131291 is a deficient number, since it is larger than the sum of its proper divisors (533331973).

11403131291 is a wasteful number, since it uses less digits than its factorization.

11403131291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564341.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 11403131291 in words is "eleven billion, four hundred three million, one hundred thirty-one thousand, two hundred ninety-one".