102321970 has 8 divisors (see below), whose sum is σ = 184179564. Its totient is φ = 40928784.

The previous prime is 102321943. The next prime is 102321971. The reversal of 102321970 is 79123201.

It can be written as a sum of positive squares in 2 ways, for example, as 101183481 + 1138489 = 10059^2 + 1067^2 .

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

It is not an unprimeable number, because it can be changed into a prime (102321971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5116089 + ... + 5116108.

Almost surely, 2^102321970 is an apocalyptic number.

102321970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102321970 is a deficient number, since it is larger than the sum of its proper divisors (81857594).

102321970 is a wasteful number, since it uses less digits than its factorization.

102321970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10232204.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 102321970 is about 10115.4322695572. The cubic root of 102321970 is about 467.7239740086.

The spelling of 102321970 in words is "one hundred two million, three hundred twenty-one thousand, nine hundred seventy".