10203240111 has 4 divisors (see below), whose sum is σ = 13604320152. Its totient is φ = 6802160072.

The previous prime is 10203240077. The next prime is 10203240127. The reversal of 10203240111 is 11104230201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11104230201 = 3 ⋅3701410067.

It is a cyclic number.

It is not a de Polignac number, because 10203240111 - 2¹⁰ = 10203239087 is a prime.

It is a super-2 number, since 2×10203240111² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10203240161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1700540016 + ... + 1700540021.

It is an arithmetic number, because the mean of its divisors is an integer number (3401080038).

Almost surely, 2^10203240111 is an apocalyptic number.

10203240111 is a deficient number, since it is larger than the sum of its proper divisors (3401080041).

10203240111 is an equidigital number, since it uses as much as digits as its factorization.

10203240111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3401080040.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 10203240111 its reverse (11104230201), we get a palindrome (21307470312).

The spelling of 10203240111 in words is "ten billion, two hundred three million, two hundred forty thousand, one hundred eleven".