11130262431 has 4 divisors (see below), whose sum is σ = 14840349912. Its totient is φ = 7420174952.

The previous prime is 11130262427. The next prime is 11130262471. The reversal of 11130262431 is 13426203111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11130262431 - 2² = 11130262427 is a prime.

It is a super-2 number, since 2×11130262431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11130262471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1855043736 + ... + 1855043741.

It is an arithmetic number, because the mean of its divisors is an integer number (3710087478).

Almost surely, 2^11130262431 is an apocalyptic number.

11130262431 is a deficient number, since it is larger than the sum of its proper divisors (3710087481).

11130262431 is an equidigital number, since it uses as much as digits as its factorization.

11130262431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3710087480.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 11130262431 its reverse (13426203111), we get a palindrome (24556465542).

The spelling of 11130262431 in words is "eleven billion, one hundred thirty million, two hundred sixty-two thousand, four hundred thirty-one".