31348396223 has 4 divisors (see below), whose sum is σ = 31556001648. Its totient is φ = 31140790800.

The previous prime is 31348396213. The next prime is 31348396279. The reversal of 31348396223 is 32269384313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32269384313 = 1307 ⋅24689659.

It is a cyclic number.

It is not a de Polignac number, because 31348396223 - 2⁴ = 31348396207 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 (31348396213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103802486 + ... + 103802787.

It is an arithmetic number, because the mean of its divisors is an integer number (7889000412).

Almost surely, 2^31348396223 is an apocalyptic number.

31348396223 is a deficient number, since it is larger than the sum of its proper divisors (207605425).

31348396223 is a wasteful number, since it uses less digits than its factorization.

31348396223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207605424.

The product of its digits is 559872, while the sum is 44.

The spelling of 31348396223 in words is "thirty-one billion, three hundred forty-eight million, three hundred ninety-six thousand, two hundred twenty-three".