2131210053456 has 120 divisors (see below), whose sum is σ = 6278628412896. Its totient is φ = 617741963520.

The previous prime is 2131210053443. The next prime is 2131210053473. The reversal of 2131210053456 is 6543500121312.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3535795 + ... + 4094418.

Almost surely, 2^{2131210053456} is an apocalyptic number.

It is an amenable number.

2131210053456 is an abundant number, since it is smaller than the sum of its proper divisors (4147418359440).

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

2131210053456 is a wasteful number, since it uses less digits than its factorization.

2131210053456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7630281 (or 7630252 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 2131210053456 its reverse (6543500121312), we get a palindrome (8674710174768).

The spelling of 2131210053456 in words is "two trillion, one hundred thirty-one billion, two hundred ten million, fifty-three thousand, four hundred fifty-six".