1020031113020 has 48 divisors (see below), whose sum is σ = 2200252699008. Its totient is φ = 396932083200.

The previous prime is 1020031113019. The next prime is 1020031113029. The reversal of 1020031113020 is 203111300201.

It is a junction number, because it is equal to n+sod(n) for n = 1020031112986 and 1020031113004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020031113029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5700920 + ... + 5877120.

It is an arithmetic number, because the mean of its divisors is an integer number (45838597896).

Almost surely, 2^{1020031113020} is an apocalyptic number.

1020031113020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020031113020 is an abundant number, since it is smaller than the sum of its proper divisors (1180221585988).

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

1020031113020 is a wasteful number, since it uses less digits than its factorization.

1020031113020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184070 (or 184068 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 1020031113020 its reverse (203111300201), we get a palindrome (1223142413221).

The spelling of 1020031113020 in words is "one trillion, twenty billion, thirty-one million, one hundred thirteen thousand, twenty".