120442645501 has 4 divisors (see below), whose sum is σ = 120900602592. Its totient is φ = 119984688412.

The previous prime is 120442645487. The next prime is 120442645529. The reversal of 120442645501 is 105546244021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 105546244021 = 15773 ⋅6691577.

It is a cyclic number.

It is not a de Polignac number, because 120442645501 - 2⁷ = 120442645373 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 (120442645801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228978151 + ... + 228978676.

It is an arithmetic number, because the mean of its divisors is an integer number (30225150648).

Almost surely, 2^120442645501 is an apocalyptic number.

It is an amenable number.

120442645501 is a deficient number, since it is larger than the sum of its proper divisors (457957091).

120442645501 is an equidigital number, since it uses as much as digits as its factorization.

120442645501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457957090.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 120442645501 its reverse (105546244021), we get a palindrome (225988889522).

The spelling of 120442645501 in words is "one hundred twenty billion, four hundred forty-two million, six hundred forty-five thousand, five hundred one".