231120102103 has 4 divisors (see below), whose sum is σ = 252131020488. Its totient is φ = 210109183720.

The previous prime is 231120102089. The next prime is 231120102173. The reversal of 231120102103 is 301201021132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231120102103 - 2⁵ = 231120102071 is a prime.

It is a super-2 number, since 2×231120102103² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231120102173) 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, 10505459176 + ... + 10505459197.

It is an arithmetic number, because the mean of its divisors is an integer number (63032755122).

Almost surely, 2^231120102103 is an apocalyptic number.

231120102103 is a deficient number, since it is larger than the sum of its proper divisors (21010918385).

231120102103 is a wasteful number, since it uses less digits than its factorization.

231120102103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21010918384.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 231120102103 its reverse (301201021132), we get a palindrome (532321123235).

The spelling of 231120102103 in words is "two hundred thirty-one billion, one hundred twenty million, one hundred two thousand, one hundred three".