3261323520001 has 4 divisors (see below), whose sum is σ = 3262612073904. Its totient is φ = 3260034966100.

The previous prime is 3261323519953. The next prime is 3261323520041. The reversal of 3261323520001 is 1000253231623.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3261323520001 - 2¹¹ = 3261323517953 is a prime.

It is a super-2 number, since 2×3261323520001² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3261323520041) 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 3 ways as a sum of consecutive naturals, for example, 644273155 + ... + 644278216.

It is an arithmetic number, because the mean of its divisors is an integer number (815653018476).

Almost surely, 2^{3261323520001} is an apocalyptic number.

It is an amenable number.

3261323520001 is a deficient number, since it is larger than the sum of its proper divisors (1288553903).

3261323520001 is a wasteful number, since it uses less digits than its factorization.

3261323520001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288553902.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 3261323520001 its reverse (1000253231623), we get a palindrome (4261576751624).

The spelling of 3261323520001 in words is "three trillion, two hundred sixty-one billion, three hundred twenty-three million, five hundred twenty thousand, one".