31332123103 has 4 divisors (see below), whose sum is σ = 31684169520. Its totient is φ = 30980076688.

The previous prime is 31332123101. The next prime is 31332123107. The reversal of 31332123103 is 30132123313.

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 31332123103 - 2¹ = 31332123101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31332123101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176023075 + ... + 176023252.

It is an arithmetic number, because the mean of its divisors is an integer number (7921042380).

Almost surely, 2^31332123103 is an apocalyptic number.

31332123103 is a deficient number, since it is larger than the sum of its proper divisors (352046417).

31332123103 is an equidigital number, since it uses as much as digits as its factorization.

31332123103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352046416.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31332123103 its reverse (30132123313), we get a palindrome (61464246416).

The spelling of 31332123103 in words is "thirty-one billion, three hundred thirty-two million, one hundred twenty-three thousand, one hundred three".