1003530100020 has 48 divisors (see below), whose sum is σ = 3211296321408. Its totient is φ = 229378308480.

The previous prime is 1003530100007. The next prime is 1003530100037. The reversal of 1003530100020 is 200010353001.

It is a happy number.

1003530100020 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1194678271 + ... + 1194679110.

It is an arithmetic number, because the mean of its divisors is an integer number (66902006696).

Almost surely, 2^{1003530100020} is an apocalyptic number.

1003530100020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1003530100020 is an abundant number, since it is smaller than the sum of its proper divisors (2207766221388).

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

1003530100020 is a wasteful number, since it uses less digits than its factorization.

1003530100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2389357400 (or 2389357398 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

Adding to 1003530100020 its reverse (200010353001), we get a palindrome (1203540453021).

The spelling of 1003530100020 in words is "one trillion, three billion, five hundred thirty million, one hundred thousand, twenty".