120444303051553 has 12 divisors (see below), whose sum is σ = 130432247529660. Its totient is φ = 111170567891136.

The previous prime is 120444303051551. The next prime is 120444303051623. The reversal of 120444303051553 is 355150303444021.

It can be written as a sum of positive squares in 6 ways, for example, as 18480515416609 + 101963787634944 = 4298897^2 + 10097712^2 .

It is not a de Polignac number, because 120444303051553 - 2¹ = 120444303051551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120444303051551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26024458 + ... + 30301171.

It is an arithmetic number, because the mean of its divisors is an integer number (10869353960805).

Almost surely, 2^{120444303051553} is an apocalyptic number.

120444303051553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

120444303051553 is a deficient number, since it is larger than the sum of its proper divisors (9987944478107).

120444303051553 is a wasteful number, since it uses less digits than its factorization.

120444303051553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56338308 (or 56338295 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 40.

Adding to 120444303051553 its reverse (355150303444021), we get a palindrome (475594606495574).

The spelling of 120444303051553 in words is "one hundred twenty trillion, four hundred forty-four billion, three hundred three million, fifty-one thousand, five hundred fifty-three".