103232421 has 16 divisors (see below), whose sum is σ = 153100800. Its totient is φ = 68747904.

The previous prime is 103232411. The next prime is 103232443. The reversal of 103232421 is 124232301.

103232421 is a `hidden beast` number, since 10 + 3 + 232 + 421 = 666.

It is not a de Polignac number, because 103232421 - 2⁶ = 103232357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103232394 and 103232403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103232401) 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, 37525 + ... + 40181.

It is an arithmetic number, because the mean of its divisors is an integer number (9568800).

Almost surely, 2^103232421 is an apocalyptic number.

It is an amenable number.

103232421 is a deficient number, since it is larger than the sum of its proper divisors (49868379).

103232421 is a wasteful number, since it uses less digits than its factorization.

103232421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4105 (or 4099 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 103232421 is about 10160.3356735887. The cubic root of 103232421 is about 469.1071339157.

Adding to 103232421 its reverse (124232301), we get a palindrome (227464722).

The spelling of 103232421 in words is "one hundred three million, two hundred thirty-two thousand, four hundred twenty-one".