31343300123 has 4 divisors (see below), whose sum is σ = 31582562088. Its totient is φ = 31104038160.

The previous prime is 31343300119. The next prime is 31343300147. The reversal of 31343300123 is 32100334313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32100334313 = 1237 ⋅25950149.

It is a cyclic number.

It is not a de Polignac number, because 31343300123 - 2² = 31343300119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31343200123) 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, 119630786 + ... + 119631047.

It is an arithmetic number, because the mean of its divisors is an integer number (7895640522).

Almost surely, 2^31343300123 is an apocalyptic number.

31343300123 is a deficient number, since it is larger than the sum of its proper divisors (239261965).

31343300123 is a wasteful number, since it uses less digits than its factorization.

31343300123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239261964.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 31343300123 its reverse (32100334313), we get a palindrome (63443634436).

The spelling of 31343300123 in words is "thirty-one billion, three hundred forty-three million, three hundred thousand, one hundred twenty-three".