123150321 has 32 divisors (see below), whose sum is σ = 215244800. Its totient is φ = 68098320.

The previous prime is 123150311. The next prime is 123150331. The reversal of 123150321 is 123051321.

It is an interprime number because it is at equal distance from previous prime (123150311) and next prime (123150331).

It is not a de Polignac number, because 123150321 - 2⁵ = 123150289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123150294 and 123150303.

It is not an unprimeable number, because it can be changed into a prime (123150301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4651 + ... + 16368.

It is an arithmetic number, because the mean of its divisors is an integer number (6726400).

Almost surely, 2^123150321 is an apocalyptic number.

It is an amenable number.

123150321 is a deficient number, since it is larger than the sum of its proper divisors (92094479).

123150321 is a wasteful number, since it uses less digits than its factorization.

123150321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21066 (or 21060 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 123150321 is about 11097.3114311530. The cubic root of 123150321 is about 497.5214956664.

The spelling of 123150321 in words is "one hundred twenty-three million, one hundred fifty thousand, three hundred twenty-one".