103031240 has 64 divisors (see below), whose sum is σ = 250810560. Its totient is φ = 37866240.

The previous prime is 103031239. The next prime is 103031249. The reversal of 103031240 is 42130301.

It is not an unprimeable number, because it can be changed into a prime (103031249) 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, 180155 + ... + 180725.

It is an arithmetic number, because the mean of its divisors is an integer number (3918915).

Almost surely, 2^103031240 is an apocalyptic number.

103031240 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 103031240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125405280).

103031240 is an abundant number, since it is smaller than the sum of its proper divisors (147779320).

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

103031240 is a wasteful number, since it uses less digits than its factorization.

103031240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942 (or 938 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 103031240 is about 10150.4305327410. The cubic root of 103031240 is about 468.8022012384.

Adding to 103031240 its reverse (42130301), we get a palindrome (145161541).

The spelling of 103031240 in words is "one hundred three million, thirty-one thousand, two hundred forty".