103421424 has 40 divisors (see below), whose sum is σ = 276388560. Its totient is φ = 33284608.

The previous prime is 103421419. The next prime is 103421429. The reversal of 103421424 is 424124301.

It is an interprime number because it is at equal distance from previous prime (103421419) and next prime (103421429).

It is a self number, because there is not a number n which added to its sum of digits gives 103421424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103421429) 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, 35757 + ... + 38540.

It is an arithmetic number, because the mean of its divisors is an integer number (6909714).

Almost surely, 2^103421424 is an apocalyptic number.

It is an amenable number.

103421424 is an abundant number, since it is smaller than the sum of its proper divisors (172967136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103421424 is a wasteful number, since it uses less digits than its factorization.

103421424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74337 (or 74331 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 103421424 is about 10169.6324417355. The cubic root of 103421424 is about 469.3932475236.

Adding to 103421424 its reverse (424124301), we get a palindrome (527545725).

The spelling of 103421424 in words is "one hundred three million, four hundred twenty-one thousand, four hundred twenty-four".