2154130321044 has 24 divisors (see below), whose sum is σ = 5412942858400. Its totient is φ = 662809329504.

The previous prime is 2154130321027. The next prime is 2154130321099. The reversal of 2154130321044 is 4401230314512.

It is a super-2 number, since 2×2154130321044² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6904263694 + ... + 6904264005.

Almost surely, 2^{2154130321044} is an apocalyptic number.

It is an amenable number.

2154130321044 is an abundant number, since it is smaller than the sum of its proper divisors (3258812537356).

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

2154130321044 is a wasteful number, since it uses less digits than its factorization.

2154130321044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13808527719 (or 13808527717 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 2154130321044 its reverse (4401230314512), we get a palindrome (6555360635556).

The spelling of 2154130321044 in words is "two trillion, one hundred fifty-four billion, one hundred thirty million, three hundred twenty-one thousand, forty-four".