103431144 has 32 divisors (see below), whose sum is σ = 258912000. Its totient is φ = 34432512.

The previous prime is 103431137. The next prime is 103431149. The reversal of 103431144 is 441134301.

It is a self number, because there is not a number n which added to its sum of digits gives 103431144.

It is not an unprimeable number, because it can be changed into a prime (103431149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19977 + ... + 24615.

It is an arithmetic number, because the mean of its divisors is an integer number (8091000).

Almost surely, 2^103431144 is an apocalyptic number.

It is an amenable number.

103431144 is an abundant number, since it is smaller than the sum of its proper divisors (155480856).

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

103431144 is a wasteful number, since it uses less digits than its factorization.

103431144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5577 (or 5573 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 103431144 is about 10170.1103238854. The cubic root of 103431144 is about 469.4079522765.

Adding to 103431144 its reverse (441134301), we get a palindrome (544565445).

The spelling of 103431144 in words is "one hundred three million, four hundred thirty-one thousand, one hundred forty-four".