102141321 has 32 divisors (see below), whose sum is σ = 158423040. Its totient is φ = 58063104.

The previous prime is 102141307. The next prime is 102141323. The reversal of 102141321 is 123141201.

It is not a de Polignac number, because 102141321 - 2¹¹ = 102139273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102141321.

It is not an unprimeable number, because it can be changed into a prime (102141323) 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, 19996 + ... + 24578.

It is an arithmetic number, because the mean of its divisors is an integer number (4950720).

Almost surely, 2^102141321 is an apocalyptic number.

It is an amenable number.

102141321 is a deficient number, since it is larger than the sum of its proper divisors (56281719).

102141321 is a wasteful number, since it uses less digits than its factorization.

102141321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4645.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 102141321 is about 10106.4989486963. The cubic root of 102141321 is about 467.4485569712.

Adding to 102141321 its reverse (123141201), we get a palindrome (225282522).

The spelling of 102141321 in words is "one hundred two million, one hundred forty-one thousand, three hundred twenty-one".