3261012346320 has 80 divisors (see below), whose sum is σ = 10109446412352. Its totient is φ = 869576785920.

The previous prime is 3261012346283. The next prime is 3261012346321. The reversal of 3261012346320 is 236432101623.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3261012346321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8432400 + ... + 8810640.

Almost surely, 2^{3261012346320} is an apocalyptic number.

3261012346320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3261012346320 is an abundant number, since it is smaller than the sum of its proper divisors (6848434066032).

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

3261012346320 is a wasteful number, since it uses less digits than its factorization.

3261012346320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414180 (or 414174 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 33.

Adding to 3261012346320 its reverse (236432101623), we get a palindrome (3497444447943).

The spelling of 3261012346320 in words is "three trillion, two hundred sixty-one billion, twelve million, three hundred forty-six thousand, three hundred twenty".