103231132040 has 64 divisors (see below), whose sum is σ = 238730814000. Its totient is φ = 40159088640.

The previous prime is 103231132019. The next prime is 103231132087. The reversal of 103231132040 is 40231132301.

It can be written as a sum of positive squares in 8 ways, for example, as 30427220356 + 72803911684 = 174434^2 + 269822^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 20525 + ... + 454844.

Almost surely, 2^103231132040 is an apocalyptic number.

103231132040 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 103231132040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119365407000).

103231132040 is an abundant number, since it is smaller than the sum of its proper divisors (135499681960).

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

103231132040 is a wasteful number, since it uses less digits than its factorization.

103231132040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475530 (or 475526 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 103231132040 its reverse (40231132301), we get a palindrome (143462264341).

The spelling of 103231132040 in words is "one hundred three billion, two hundred thirty-one million, one hundred thirty-two thousand, forty".