101321231103 has 16 divisors (see below), whose sum is σ = 152219692800. Its totient is φ = 66596113080.

The previous prime is 101321231093. The next prime is 101321231107. The reversal of 101321231103 is 301132123101.

101321231103 is a `hidden beast` number, since 10 + 1 + 321 + 231 + 103 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-101321231103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101321231107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26425113 + ... + 26428946.

It is an arithmetic number, because the mean of its divisors is an integer number (9513730800).

Almost surely, 2^101321231103 is an apocalyptic number.

101321231103 is a deficient number, since it is larger than the sum of its proper divisors (50898461697).

101321231103 is an equidigital number, since it uses as much as digits as its factorization.

101321231103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52854139 (or 52854133 counting only the distinct ones).

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

Adding to 101321231103 its reverse (301132123101), we get a palindrome (402453354204).

The spelling of 101321231103 in words is "one hundred one billion, three hundred twenty-one million, two hundred thirty-one thousand, one hundred three".