1131431134344 has 64 divisors (see below), whose sum is σ = 3232911312000. Its totient is φ = 323240945664.

The previous prime is 1131431134343. The next prime is 1131431134417. The reversal of 1131431134344 is 4434311341311.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1131431134343) 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, 1965682 + ... + 2475230.

It is an arithmetic number, because the mean of its divisors is an integer number (50514239250).

Almost surely, 2^{1131431134344} is an apocalyptic number.

1131431134344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1131431134344 is an abundant number, since it is smaller than the sum of its proper divisors (2101480177656).

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

1131431134344 is a wasteful number, since it uses less digits than its factorization.

1131431134344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522782 (or 522778 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

Adding to 1131431134344 its reverse (4434311341311), we get a palindrome (5565742475655).

The spelling of 1131431134344 in words is "one trillion, one hundred thirty-one billion, four hundred thirty-one million, one hundred thirty-four thousand, three hundred forty-four".