31223243043134 has 8 divisors (see below), whose sum is σ = 46918052602920. Its totient is φ = 15583892175496.

The previous prime is 31223243043103. The next prime is 31223243043137. The reversal of 31223243043134 is 43134034232213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×31223243043134² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31223243043094 and 31223243043103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31223243043137) 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, 13864671629 + ... + 13864673880.

It is an arithmetic number, because the mean of its divisors is an integer number (5864756575365).

Almost surely, 2^{31223243043134} is an apocalyptic number.

31223243043134 is a deficient number, since it is larger than the sum of its proper divisors (15694809559786).

31223243043134 is a wasteful number, since it uses less digits than its factorization.

31223243043134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27729346074.

The product of its (nonzero) digits is 124416, while the sum is 35.

Adding to 31223243043134 its reverse (43134034232213), we get a palindrome (74357277275347).

The spelling of 31223243043134 in words is "thirty-one trillion, two hundred twenty-three billion, two hundred forty-three million, forty-three thousand, one hundred thirty-four".