11130431511 has 32 divisors (see below), whose sum is σ = 15217459200. Its totient is φ = 7234587360.

The previous prime is 11130431489. The next prime is 11130431537. The reversal of 11130431511 is 11513403111.

It is not a de Polignac number, because 11130431511 - 2¹³ = 11130423319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11130411511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12957000 + ... + 12957858.

It is an arithmetic number, because the mean of its divisors is an integer number (475545600).

Almost surely, 2^11130431511 is an apocalyptic number.

11130431511 is a deficient number, since it is larger than the sum of its proper divisors (4087027689).

11130431511 is a wasteful number, since it uses less digits than its factorization.

11130431511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539.

The product of its (nonzero) digits is 180, while the sum is 21.

Adding to 11130431511 its reverse (11513403111), we get a palindrome (22643834622).

The spelling of 11130431511 in words is "eleven billion, one hundred thirty million, four hundred thirty-one thousand, five hundred eleven".