2103031021020 has 48 divisors (see below), whose sum is σ = 5888552828928. Its totient is φ = 560801989440.

The previous prime is 2103031020953. The next prime is 2103031021079. The reversal of 2103031021020 is 201201303012.

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, 8103717 + ... + 8359203.

It is an arithmetic number, because the mean of its divisors is an integer number (122678183936).

Almost surely, 2^{2103031021020} is an apocalyptic number.

2103031021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2103031021020 is an abundant number, since it is smaller than the sum of its proper divisors (3785521807908).

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

2103031021020 is a wasteful number, since it uses less digits than its factorization.

2103031021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392690 (or 392688 counting only the distinct ones).

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

Adding to 2103031021020 its reverse (201201303012), we get a palindrome (2304232324032).

The spelling of 2103031021020 in words is "two trillion, one hundred three billion, thirty-one million, twenty-one thousand, twenty".