120009973 has 4 divisors (see below), whose sum is σ = 120443500. Its totient is φ = 119576448.

The previous prime is 120009961. The next prime is 120009979. The reversal of 120009973 is 379900021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 379900021 = 2011 ⋅188911.

It can be written as a sum of positive squares in 2 ways, for example, as 78110244 + 41899729 = 8838^2 + 6473^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120009973 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 (120009979) 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, 216348 + ... + 216901.

It is an arithmetic number, because the mean of its divisors is an integer number (30110875).

Almost surely, 2^120009973 is an apocalyptic number.

It is an amenable number.

120009973 is a deficient number, since it is larger than the sum of its proper divisors (433527).

120009973 is an equidigital number, since it uses as much as digits as its factorization.

120009973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433526.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 120009973 is about 10954.9063437348. The cubic root of 120009973 is about 493.2560786726.

Adding to 120009973 its reverse (379900021), we get a palindrome (499909994).

The spelling of 120009973 in words is "one hundred twenty million, nine thousand, nine hundred seventy-three".