31343223344133 has 4 divisors (see below), whose sum is σ = 41790964458848. Its totient is φ = 20895482229420.

The previous prime is 31343223344123. The next prime is 31343223344141. The reversal of 31343223344133 is 33144332234313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 31343223344133 - 2⁴ = 31343223344117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31343223344091 and 31343223344100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31343223344113) 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, 5223870557353 + ... + 5223870557358.

It is an arithmetic number, because the mean of its divisors is an integer number (10447741114712).

Almost surely, 2^{31343223344133} is an apocalyptic number.

It is an amenable number.

31343223344133 is a deficient number, since it is larger than the sum of its proper divisors (10447741114715).

31343223344133 is a wasteful number, since it uses less digits than its factorization.

31343223344133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10447741114714.

The product of its digits is 559872, while the sum is 39.

Adding to 31343223344133 its reverse (33144332234313), we get a palindrome (64487555578446).

The spelling of 31343223344133 in words is "thirty-one trillion, three hundred forty-three billion, two hundred twenty-three million, three hundred forty-four thousand, one hundred thirty-three".