1020031121010 has 128 divisors (see below), whose sum is σ = 2768614318080. Its totient is φ = 238275878400.

The previous prime is 1020031120921. The next prime is 1020031121047. The reversal of 1020031121010 is 101211300201.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2169621 + ... + 2597559.

It is an arithmetic number, because the mean of its divisors is an integer number (21629799360).

Almost surely, 2^{1020031121010} is an apocalyptic number.

1020031121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020031121010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1384307159040).

1020031121010 is an abundant number, since it is smaller than the sum of its proper divisors (1748583197070).

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

1020031121010 is a wasteful number, since it uses less digits than its factorization.

1020031121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428224.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 1020031121010 its reverse (101211300201), we get a palindrome (1121242421211).

The spelling of 1020031121010 in words is "one trillion, twenty billion, thirty-one million, one hundred twenty-one thousand, ten".