31303012312123 has 8 divisors (see below), whose sum is σ = 33177085014528. Its totient is φ = 29432575058304.

The previous prime is 31303012312081. The next prime is 31303012312133. The reversal of 31303012312123 is 32121321030313.

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 31303012312123 - 2¹³ = 31303012303931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31303012312133) 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, 908844411 + ... + 908878852.

It is an arithmetic number, because the mean of its divisors is an integer number (4147135626816).

Almost surely, 2^{31303012312123} is an apocalyptic number.

31303012312123 is a deficient number, since it is larger than the sum of its proper divisors (1874072702405).

31303012312123 is a wasteful number, since it uses less digits than its factorization.

31303012312123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817724293.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31303012312123 its reverse (32121321030313), we get a palindrome (63424333342436).

The spelling of 31303012312123 in words is "thirty-one trillion, three hundred three billion, twelve million, three hundred twelve thousand, one hundred twenty-three".