120331645453 has 8 divisors (see below), whose sum is σ = 120796968600. Its totient is φ = 119866456128.

The previous prime is 120331645409. The next prime is 120331645471. The reversal of 120331645453 is 354546133021.

It can be written as a sum of positive squares in 4 ways, for example, as 42243814089 + 78087831364 = 205533^2 + 279442^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120331645453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120331645403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2007603 + ... + 2066671.

It is an arithmetic number, because the mean of its divisors is an integer number (15099621075).

Almost surely, 2^120331645453 is an apocalyptic number.

It is an amenable number.

120331645453 is a deficient number, since it is larger than the sum of its proper divisors (465323147).

120331645453 is an equidigital number, since it uses as much as digits as its factorization.

120331645453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66911.

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 120331645453 its reverse (354546133021), we get a palindrome (474877778474).

The spelling of 120331645453 in words is "one hundred twenty billion, three hundred thirty-one million, six hundred forty-five thousand, four hundred fifty-three".