1030203011220 has 48 divisors (see below), whose sum is σ = 2887503050880. Its totient is φ = 274441315456.

The previous prime is 1030203011153. The next prime is 1030203011239. The reversal of 1030203011220 is 221103020301.

It is a super-2 number, since 2×1030203011220² (a number of 25 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1030203011220.

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, 8674515 + ... + 8792474.

It is an arithmetic number, because the mean of its divisors is an integer number (60156313560).

Almost surely, 2^{1030203011220} is an apocalyptic number.

1030203011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030203011220 is an abundant number, since it is smaller than the sum of its proper divisors (1857300039660).

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

1030203011220 is a wasteful number, since it uses less digits than its factorization.

1030203011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17467984 (or 17467982 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1030203011220 its reverse (221103020301), we get a palindrome (1251306031521).

The spelling of 1030203011220 in words is "one trillion, thirty billion, two hundred three million, eleven thousand, two hundred twenty".