103312380 has 48 divisors (see below), whose sum is σ = 291947040. Its totient is φ = 27295488.

The previous prime is 103312373. The next prime is 103312381. The reversal of 103312380 is 83213301.

It is a happy number.

It is a super-2 number, since 2×103312380² = 21346895722528800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103312381) 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, 1359 + ... + 14438.

It is an arithmetic number, because the mean of its divisors is an integer number (6082230).

Almost surely, 2^103312380 is an apocalyptic number.

103312380 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 103312380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145973520).

103312380 is an abundant number, since it is smaller than the sum of its proper divisors (188634660).

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

103312380 is a wasteful number, since it uses less digits than its factorization.

103312380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15918 (or 15916 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 103312380 is about 10164.2697720987. The cubic root of 103312380 is about 469.2282187997.

Adding to 103312380 its reverse (83213301), we get a palindrome (186525681).

It can be divided in two parts, 1033123 and 80, that added together give a triangular number (1033203 = T₁₄₃₇).

The spelling of 103312380 in words is "one hundred three million, three hundred twelve thousand, three hundred eighty".