102150321 has 16 divisors (see below), whose sum is σ = 167631744. Its totient is φ = 53881344.

The previous prime is 102150319. The next prime is 102150343. The reversal of 102150321 is 123051201.

It is not a de Polignac number, because 102150321 - 2¹ = 102150319 is a prime.

It is a super-3 number, since 3×102150321³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102150321.

It is not an unprimeable number, because it can be changed into a prime (102150361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186816 + ... + 187361.

It is an arithmetic number, because the mean of its divisors is an integer number (10476984).

Almost surely, 2^102150321 is an apocalyptic number.

It is an amenable number.

102150321 is a deficient number, since it is larger than the sum of its proper divisors (65481423).

102150321 is a wasteful number, since it uses less digits than its factorization.

102150321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374200.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 102150321 is about 10106.9441969371. The cubic root of 102150321 is about 467.4622860327.

The spelling of 102150321 in words is "one hundred two million, one hundred fifty thousand, three hundred twenty-one".