103400120 has 64 divisors (see below), whose sum is σ = 249829920. Its totient is φ = 38375424.

The previous prime is 103400113. The next prime is 103400123. The reversal of 103400120 is 21004301.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103400123) 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, 48599 + ... + 50681.

Almost surely, 2^103400120 is an apocalyptic number.

103400120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103400120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124914960).

103400120 is an abundant number, since it is smaller than the sum of its proper divisors (146429800).

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

103400120 is a wasteful number, since it uses less digits than its factorization.

103400120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2184 (or 2180 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 103400120 is about 10168.5849556366. The cubic root of 103400120 is about 469.3610148711.

Adding to 103400120 its reverse (21004301), we get a palindrome (124404421).

The spelling of 103400120 in words is "one hundred three million, four hundred thousand, one hundred twenty".