1203311002020 has 24 divisors (see below), whose sum is σ = 3369270805824. Its totient is φ = 320882933856.

The previous prime is 1203311001947. The next prime is 1203311002121. The reversal of 1203311002020 is 202001133021.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10027591624 + ... + 10027591743.

It is an arithmetic number, because the mean of its divisors is an integer number (140386283576).

Almost surely, 2^{1203311002020} is an apocalyptic number.

1203311002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203311002020 is an abundant number, since it is smaller than the sum of its proper divisors (2165959803804).

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

1203311002020 is a wasteful number, since it uses less digits than its factorization.

1203311002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20055183379 (or 20055183377 counting only the distinct ones).

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

Adding to 1203311002020 its reverse (202001133021), we get a palindrome (1405312135041).

The spelling of 1203311002020 in words is "one trillion, two hundred three billion, three hundred eleven million, two thousand, twenty".