3120121356664 has 64 divisors (see below), whose sum is σ = 6682099263840. Its totient is φ = 1353060802560.

The previous prime is 3120121356629. The next prime is 3120121356673. The reversal of 3120121356664 is 4666531210213.

It is a congruent number.

It is an unprimeable number.

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, 439582 + ... + 2536429.

Almost surely, 2^{3120121356664} is an apocalyptic number.

3120121356664 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

3120121356664 is an abundant number, since it is smaller than the sum of its proper divisors (3561977907176).

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

3120121356664 is a wasteful number, since it uses less digits than its factorization.

3120121356664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2976640 (or 2976636 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

Adding to 3120121356664 its reverse (4666531210213), we get a palindrome (7786652566877).

The spelling of 3120121356664 in words is "three trillion, one hundred twenty billion, one hundred twenty-one million, three hundred fifty-six thousand, six hundred sixty-four".