2231541521344 has 56 divisors (see below), whose sum is σ = 4548066421248. Its totient is φ = 1085714165760.

The previous prime is 2231541521329. The next prime is 2231541521387. The reversal of 2231541521344 is 4431251451322.

It is a super-3 number, since 3×2231541521344³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 105237 + ... + 2115220.

It is an arithmetic number, because the mean of its divisors is an integer number (81215471808).

Almost surely, 2^{2231541521344} is an apocalyptic number.

It is an amenable number.

2231541521344 is an abundant number, since it is smaller than the sum of its proper divisors (2316524899904).

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

2231541521344 is a wasteful number, since it uses less digits than its factorization.

2231541521344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220893 (or 2220883 counting only the distinct ones).

The product of its digits is 115200, while the sum is 37.

Adding to 2231541521344 its reverse (4431251451322), we get a palindrome (6662792972666).

The spelling of 2231541521344 in words is "two trillion, two hundred thirty-one billion, five hundred forty-one million, five hundred twenty-one thousand, three hundred forty-four".