3612421531121 has 8 divisors (see below), whose sum is σ = 3890965314600. Its totient is φ = 3333972776832.

The previous prime is 3612421531007. The next prime is 3612421531163. The reversal of 3612421531121 is 1211351242163.

It can be written as a sum of positive squares in 4 ways, for example, as 228885696400 + 3383535834721 = 478420^2 + 1839439^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3612421531121 - 2¹⁰ = 3612421530097 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3612421531181) 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 7 ways as a sum of consecutive naturals, for example, 23678330 + ... + 23830403.

It is an arithmetic number, because the mean of its divisors is an integer number (486370664325).

Almost surely, 2^{3612421531121} is an apocalyptic number.

It is an amenable number.

3612421531121 is a deficient number, since it is larger than the sum of its proper divisors (278543783479).

3612421531121 is a wasteful number, since it uses less digits than its factorization.

3612421531121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47514595.

The product of its digits is 8640, while the sum is 32.

Adding to 3612421531121 its reverse (1211351242163), we get a palindrome (4823772773284).

The spelling of 3612421531121 in words is "three trillion, six hundred twelve billion, four hundred twenty-one million, five hundred thirty-one thousand, one hundred twenty-one".