103251243520 has 80 divisors (see below), whose sum is σ = 262123510968. Its totient is φ = 38871040000.

The previous prime is 103251243517. The next prime is 103251243541. The reversal of 103251243520 is 25342152301.

It can be written as a sum of positive squares in 4 ways, for example, as 89319690496 + 13931553024 = 298864^2 + 118032^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1142731 + ... + 1229770.

Almost surely, 2^103251243520 is an apocalyptic number.

103251243520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103251243520 is an abundant number, since it is smaller than the sum of its proper divisors (158872267448).

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

103251243520 is an equidigital number, since it uses as much as digits as its factorization.

103251243520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372541 (or 2372525 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 103251243520 its reverse (25342152301), we get a palindrome (128593395821).

The spelling of 103251243520 in words is "one hundred three billion, two hundred fifty-one million, two hundred forty-three thousand, five hundred twenty".