31240343011123 has 8 divisors (see below), whose sum is σ = 31246857127376. Its totient is φ = 31233829586400.

The previous prime is 31240343011121. The next prime is 31240343011151. The reversal of 31240343011123 is 32111034304213.

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

It is a cyclic number.

It is not a de Polignac number, because 31240343011123 - 2¹ = 31240343011121 is a prime.

It is a super-2 number, since 2×31240343011123² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31240343011091 and 31240343011100.

It is not an unprimeable number, because it can be changed into a prime (31240343011121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95641840 + ... + 95967922.

It is an arithmetic number, because the mean of its divisors is an integer number (3905857140922).

Almost surely, 2^{31240343011123} is an apocalyptic number.

31240343011123 is a deficient number, since it is larger than the sum of its proper divisors (6514116253).

31240343011123 is a wasteful number, since it uses less digits than its factorization.

31240343011123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345765.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 31240343011123 its reverse (32111034304213), we get a palindrome (63351377315336).

The spelling of 31240343011123 in words is "thirty-one trillion, two hundred forty billion, three hundred forty-three million, eleven thousand, one hundred twenty-three".