1020100111203 has 32 divisors (see below), whose sum is σ = 1441140940800. Its totient is φ = 640046395296.

The previous prime is 1020100111183. The next prime is 1020100111229. The reversal of 1020100111203 is 3021110010201.

It is not a de Polignac number, because 1020100111203 - 2²¹ = 1020098014051 is a prime.

It is a super-2 number, since 2×1020100111203² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1020100111003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5905618 + ... + 6075896.

It is an arithmetic number, because the mean of its divisors is an integer number (45035654400).

Almost surely, 2^{1020100111203} is an apocalyptic number.

1020100111203 is a deficient number, since it is larger than the sum of its proper divisors (421040829597).

1020100111203 is a wasteful number, since it uses less digits than its factorization.

1020100111203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170991.

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

Adding to 1020100111203 its reverse (3021110010201), we get a palindrome (4041210121404).

The spelling of 1020100111203 in words is "one trillion, twenty billion, one hundred million, one hundred eleven thousand, two hundred three".