120873513601 has 4 divisors (see below), whose sum is σ = 120987438804. Its totient is φ = 120759588400.

The previous prime is 120873513599. The next prime is 120873513617. The reversal of 120873513601 is 106315378021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 106315378021 = 281 ⋅378346541.

It can be written as a sum of positive squares in 2 ways, for example, as 96395346576 + 24478167025 = 310476^2 + 156455^2 .

It is a cyclic number.

It is not a de Polignac number, because 120873513601 - 2¹ = 120873513599 is a prime.

It is a super-2 number, since 2×120873513601² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120873513301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56961010 + ... + 56963131.

It is an arithmetic number, because the mean of its divisors is an integer number (30246859701).

Almost surely, 2^120873513601 is an apocalyptic number.

It is an amenable number.

120873513601 is a deficient number, since it is larger than the sum of its proper divisors (113925203).

120873513601 is a wasteful number, since it uses less digits than its factorization.

120873513601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113925202.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 120873513601 in words is "one hundred twenty billion, eight hundred seventy-three million, five hundred thirteen thousand, six hundred one".