31344423103 has 4 divisors (see below), whose sum is σ = 35822197840. Its totient is φ = 26866648368.

The previous prime is 31344423079. The next prime is 31344423167. The reversal of 31344423103 is 30132444313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30132444313 = 137 ⋅219944849.

It is a de Polignac number, because none of the positive numbers 2^k-31344423103 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 (31344420103) 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, 2238887358 + ... + 2238887371.

It is an arithmetic number, because the mean of its divisors is an integer number (8955549460).

Almost surely, 2^31344423103 is an apocalyptic number.

31344423103 is a deficient number, since it is larger than the sum of its proper divisors (4477774737).

31344423103 is an equidigital number, since it uses as much as digits as its factorization.

31344423103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4477774736.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 31344423103 its reverse (30132444313), we get a palindrome (61476867416).

The spelling of 31344423103 in words is "thirty-one billion, three hundred forty-four million, four hundred twenty-three thousand, one hundred three".