103421256 has 64 divisors (see below), whose sum is σ = 273374400. Its totient is φ = 32514048.

The previous prime is 103421249. The next prime is 103421261. The reversal of 103421256 is 652124301.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153336 + ... + 154008.

It is an arithmetic number, because the mean of its divisors is an integer number (4271475).

Almost surely, 2^103421256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103421256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136687200).

103421256 is an abundant number, since it is smaller than the sum of its proper divisors (169953144).

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

103421256 is a wasteful number, since it uses less digits than its factorization.

103421256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038 (or 1034 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 103421256 is about 10169.6241818466. The cubic root of 103421256 is about 469.3929933593.

Adding to 103421256 its reverse (652124301), we get a palindrome (755545557).

The spelling of 103421256 in words is "one hundred three million, four hundred twenty-one thousand, two hundred fifty-six".