11131442434 has 32 divisors (see below), whose sum is σ = 19919390976. Its totient is φ = 4561539840.

The previous prime is 11131442417. The next prime is 11131442437. The reversal of 11131442434 is 43424413111.

It is a super-2 number, since 2×11131442434² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11131442437) 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, 1302094 + ... + 1310614.

It is an arithmetic number, because the mean of its divisors is an integer number (622480968).

Almost surely, 2^11131442434 is an apocalyptic number.

11131442434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11131442434 is a deficient number, since it is larger than the sum of its proper divisors (8787948542).

11131442434 is a wasteful number, since it uses less digits than its factorization.

11131442434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12610.

The product of its digits is 4608, while the sum is 28.

Adding to 11131442434 its reverse (43424413111), we get a palindrome (54555855545).

The spelling of 11131442434 in words is "eleven billion, one hundred thirty-one million, four hundred forty-two thousand, four hundred thirty-four".