102352421 has 8 divisors (see below), whose sum is σ = 106368000. Its totient is φ = 98381520.

The previous prime is 102352391. The next prime is 102352429. The reversal of 102352421 is 124253201.

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 102352421 - 2¹⁰ = 102351397 is a prime.

It is a super-2 number, since 2×102352421² = 20952036169122482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102352393 and 102352402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102352429) 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, 6461 + ... + 15698.

It is an arithmetic number, because the mean of its divisors is an integer number (13296000).

Almost surely, 2^102352421 is an apocalyptic number.

It is an amenable number.

102352421 is a deficient number, since it is larger than the sum of its proper divisors (4015579).

102352421 is a wasteful number, since it uses less digits than its factorization.

102352421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22339.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 102352421 is about 10116.9373330075. The cubic root of 102352421 is about 467.7703675970.

The spelling of 102352421 in words is "one hundred two million, three hundred fifty-two thousand, four hundred twenty-one".