10203103021111 has 32 divisors (see below), whose sum is σ = 14171659891200. Its totient is φ = 7085829905280.

The previous prime is 10203103021079. The next prime is 10203103021193. The reversal of 10203103021111 is 11112030130201.

It is a happy number.

It is not a de Polignac number, because 10203103021111 - 2⁵ = 10203103021079 is a prime.

It is a super-2 number, since 2×10203103021111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10203103001111) 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, 175710801 + ... + 175768858.

It is an arithmetic number, because the mean of its divisors is an integer number (442864371600).

Almost surely, 2^{10203103021111} is an apocalyptic number.

10203103021111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10203103021111 is a deficient number, since it is larger than the sum of its proper divisors (3968556870089).

10203103021111 is a wasteful number, since it uses less digits than its factorization.

10203103021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351479719.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 10203103021111 its reverse (11112030130201), we get a palindrome (21315133151312).

The spelling of 10203103021111 in words is "ten trillion, two hundred three billion, one hundred three million, twenty-one thousand, one hundred eleven".