120551317 has 4 divisors (see below), whose sum is σ = 123354880. Its totient is φ = 117747756.

The previous prime is 120551293. The next prime is 120551323. The reversal of 120551317 is 713155021.

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.

It is a cyclic number.

It is not a de Polignac number, because 120551317 - 2²³ = 112162709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120551291 and 120551300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120501317) 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, 1401717 + ... + 1401802.

It is an arithmetic number, because the mean of its divisors is an integer number (30838720).

Almost surely, 2^120551317 is an apocalyptic number.

It is an amenable number.

120551317 is a deficient number, since it is larger than the sum of its proper divisors (2803563).

120551317 is an equidigital number, since it uses as much as digits as its factorization.

120551317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2803562.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 120551317 is about 10979.5863765444. The cubic root of 120551317 is about 493.9966302556.

The spelling of 120551317 in words is "one hundred twenty million, five hundred fifty-one thousand, three hundred seventeen".