1021203112110 has 16 divisors (see below), whose sum is σ = 2450887469136. Its totient is φ = 272320829888.

The previous prime is 1021203112103. The next prime is 1021203112157. The reversal of 1021203112110 is 112113021201.

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 1021203112110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17020051839 + ... + 17020051898.

It is an arithmetic number, because the mean of its divisors is an integer number (153180466821).

Almost surely, 2^{1021203112110} is an apocalyptic number.

1021203112110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021203112110 is an abundant number, since it is smaller than the sum of its proper divisors (1429684357026).

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

1021203112110 is a wasteful number, since it uses less digits than its factorization.

1021203112110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34040103747.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1021203112110 its reverse (112113021201), we get a palindrome (1133316133311).

Subtracting from 1021203112110 its reverse (112113021201), we obtain a palindrome (909090090909).

The spelling of 1021203112110 in words is "one trillion, twenty-one billion, two hundred three million, one hundred twelve thousand, one hundred ten".