11431311234 has 64 divisors (see below), whose sum is σ = 27581472000. Its totient is φ = 3153448704.

The previous prime is 11431311233. The next prime is 11431311253. The reversal of 11431311234 is 43211313411.

It is a happy number.

It is a super-3 number, since 3×11431311234³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11431311233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36087 + ... + 155450.

It is an arithmetic number, because the mean of its divisors is an integer number (430960500).

Almost surely, 2^11431311234 is an apocalyptic number.

11431311234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11431311234 is an abundant number, since it is smaller than the sum of its proper divisors (16150160766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11431311234 is a wasteful number, since it uses less digits than its factorization.

11431311234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191592 (or 191578 counting only the distinct ones).

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

Adding to 11431311234 its reverse (43211313411), we get a palindrome (54642624645).

The spelling of 11431311234 in words is "eleven billion, four hundred thirty-one million, three hundred eleven thousand, two hundred thirty-four".