1003442404520 has 16 divisors (see below), whose sum is σ = 2257745410260. Its totient is φ = 401376961792.

The previous prime is 1003442404511. The next prime is 1003442404537. The reversal of 1003442404520 is 254042443001.

It can be written as a sum of positive squares in 2 ways, for example, as 962247207364 + 41195197156 = 980942^2 + 202966^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12543030017 + ... + 12543030096.

Almost surely, 2^{1003442404520} is an apocalyptic number.

1003442404520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1003442404520 is an abundant number, since it is smaller than the sum of its proper divisors (1254303005740).

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

1003442404520 is a wasteful number, since it uses less digits than its factorization.

1003442404520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25086060124 (or 25086060120 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 1003442404520 its reverse (254042443001), we get a palindrome (1257484847521).

The spelling of 1003442404520 in words is "one trillion, three billion, four hundred forty-two million, four hundred four thousand, five hundred twenty".