11130231442 has 64 divisors (see below), whose sum is σ = 19073553408. Its totient is φ = 4826520000.

The previous prime is 11130231421. The next prime is 11130231443. The reversal of 11130231442 is 24413203111.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (11130231443) 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, 10201317 + ... + 10202407.

It is an arithmetic number, because the mean of its divisors is an integer number (298024272).

Almost surely, 2^11130231442 is an apocalyptic number.

11130231442 is a deficient number, since it is larger than the sum of its proper divisors (7943321966).

11130231442 is a wasteful number, since it uses less digits than its factorization.

11130231442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 11130231442 its reverse (24413203111), we get a palindrome (35543434553).

The spelling of 11130231442 in words is "eleven billion, one hundred thirty million, two hundred thirty-one thousand, four hundred forty-two".