103431240 has 96 divisors (see below), whose sum is σ = 366724800. Its totient is φ = 25073280.

The previous prime is 103431239. The next prime is 103431241. The reversal of 103431240 is 42134301.

It is an interprime number because it is at equal distance from previous prime (103431239) and next prime (103431241).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (103431241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9100 + ... + 17019.

It is an arithmetic number, because the mean of its divisors is an integer number (3820050).

Almost surely, 2^103431240 is an apocalyptic number.

103431240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103431240 is an abundant number, since it is smaller than the sum of its proper divisors (263293560).

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

103431240 is a wasteful number, since it uses less digits than its factorization.

103431240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26147 (or 26140 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 103431240 is about 10170.1150435971. The cubic root of 103431240 is about 469.4080975040.

Adding to 103431240 its reverse (42134301), we get a palindrome (145565541).

The spelling of 103431240 in words is "one hundred three million, four hundred thirty-one thousand, two hundred forty".