120021431133144 has 16 divisors (see below), whose sum is σ = 300053577832920. Its totient is φ = 40007143711040.

The previous prime is 120021431133113. The next prime is 120021431133161. The reversal of 120021431133144 is 441331134120021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2500446481917 + ... + 2500446481964.

Almost surely, 2^{120021431133144} is an apocalyptic number.

It is an amenable number.

120021431133144 is an abundant number, since it is smaller than the sum of its proper divisors (180032146699776).

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

120021431133144 is a wasteful number, since it uses less digits than its factorization.

120021431133144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000892963890 (or 5000892963886 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 120021431133144 its reverse (441331134120021), we get a palindrome (561352565253165).

The spelling of 120021431133144 in words is "one hundred twenty trillion, twenty-one billion, four hundred thirty-one million, one hundred thirty-three thousand, one hundred forty-four".