231312101103 has 6 divisors (see below), whose sum is σ = 334117479384. Its totient is φ = 154208067396.

The previous prime is 231312101093. The next prime is 231312101143. The reversal of 231312101103 is 301101213132.

231312101103 is a `hidden beast` number, since 231 + 312 + 10 + 110 + 3 = 666.

It is not a de Polignac number, because 231312101103 - 2⁸ = 231312100847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231312101143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12850672275 + ... + 12850672292.

It is an arithmetic number, because the mean of its divisors is an integer number (55686246564).

Almost surely, 2^231312101103 is an apocalyptic number.

231312101103 is a deficient number, since it is larger than the sum of its proper divisors (102805378281).

231312101103 is a wasteful number, since it uses less digits than its factorization.

231312101103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25701344573 (or 25701344570 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 231312101103 its reverse (301101213132), we get a palindrome (532413314235).

The spelling of 231312101103 in words is "two hundred thirty-one billion, three hundred twelve million, one hundred one thousand, one hundred three".