11391291429 has 16 divisors (see below), whose sum is σ = 17395342848. Its totient is φ = 6495365232.

The previous prime is 11391291427. The next prime is 11391291433. The reversal of 11391291429 is 92419219311.

It is a happy number.

It is not a de Polignac number, because 11391291429 - 2¹ = 11391291427 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11391291427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 570967 + ... + 590580.

It is an arithmetic number, because the mean of its divisors is an integer number (1087208928).

Almost surely, 2^11391291429 is an apocalyptic number.

It is an amenable number.

11391291429 is a deficient number, since it is larger than the sum of its proper divisors (6004051419).

11391291429 is a wasteful number, since it uses less digits than its factorization.

11391291429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162024.

The product of its digits is 34992, while the sum is 42.

The spelling of 11391291429 in words is "eleven billion, three hundred ninety-one million, two hundred ninety-one thousand, four hundred twenty-nine".