387211123 has 8 divisors (see below), whose sum is σ = 417160800. Its totient is φ = 357284928.

The previous prime is 387211081. The next prime is 387211147. The reversal of 387211123 is 321112783.

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

It is not a de Polignac number, because 387211123 - 2⁹ = 387210611 is a prime.

It is a super-4 number, since 4×387211123⁴ (a number of 35 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 387211091 and 387211100.

It is not an unprimeable number, because it can be changed into a prime (387211723) 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 7 ways as a sum of consecutive naturals, for example, 44343 + ... + 52351.

It is an arithmetic number, because the mean of its divisors is an integer number (52145100).

Almost surely, 2^387211123 is an apocalyptic number.

387211123 is a deficient number, since it is larger than the sum of its proper divisors (29949677).

387211123 is a wasteful number, since it uses less digits than its factorization.

387211123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11741.

The product of its digits is 2016, while the sum is 28.

The square root of 387211123 is about 19677.6808338788. The cubic root of 387211123 is about 728.8686566487.

The spelling of 387211123 in words is "three hundred eighty-seven million, two hundred eleven thousand, one hundred twenty-three".