151112321 has 8 divisors (see below), whose sum is σ = 157113600. Its totient is φ = 145181520.

The previous prime is 151112317. The next prime is 151112333. The reversal of 151112321 is 123211151.

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

It is a cyclic number.

It is not a de Polignac number, because 151112321 - 2² = 151112317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 151112321.

It is not an unprimeable number, because it can be changed into a prime (151112341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13226 + ... + 21843.

It is an arithmetic number, because the mean of its divisors is an integer number (19639200).

Almost surely, 2^151112321 is an apocalyptic number.

It is an amenable number.

151112321 is a deficient number, since it is larger than the sum of its proper divisors (6001279).

151112321 is a wasteful number, since it uses less digits than its factorization.

151112321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35239.

The product of its digits is 60, while the sum is 17.

The square root of 151112321 is about 12292.7751545369. The cubic root of 151112321 is about 532.6394042360.

Adding to 151112321 its reverse (123211151), we get a palindrome (274323472).

The spelling of 151112321 in words is "one hundred fifty-one million, one hundred twelve thousand, three hundred twenty-one".