31312022123123 has 8 divisors (see below), whose sum is σ = 35795072727648. Its totient is φ = 26831447665344.

The previous prime is 31312022123119. The next prime is 31312022123153. The reversal of 31312022123123 is 32132122021313.

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

It is not a de Polignac number, because 31312022123123 - 2² = 31312022123119 is a prime.

It is a super-3 number, since 3×31312022123123³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31312022123092 and 31312022123101.

It is not an unprimeable number, because it can be changed into a prime (31312022123153) 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, 619009586 + ... + 619060167.

It is an arithmetic number, because the mean of its divisors is an integer number (4474384090956).

Almost surely, 2^{31312022123123} is an apocalyptic number.

31312022123123 is a deficient number, since it is larger than the sum of its proper divisors (4483050604525).

31312022123123 is a wasteful number, since it uses less digits than its factorization.

31312022123123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238073373.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 31312022123123 its reverse (32132122021313), we get a palindrome (63444144144436).

The spelling of 31312022123123 in words is "thirty-one trillion, three hundred twelve billion, twenty-two million, one hundred twenty-three thousand, one hundred twenty-three".