31023312313123 has 8 divisors (see below), whose sum is σ = 35168127318800. Its totient is φ = 27129698216928.

The previous prime is 31023312313121. The next prime is 31023312313129. The reversal of 31023312313123 is 32131321332013.

It is a happy number.

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 31023312313123 - 2¹ = 31023312313121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31023312313091 and 31023312313100.

It is not an unprimeable number, because it can be changed into a prime (31023312313121) 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, 62800227108 + ... + 62800227601.

It is an arithmetic number, because the mean of its divisors is an integer number (4396015914850).

Almost surely, 2^{31023312313123} is an apocalyptic number.

31023312313123 is a deficient number, since it is larger than the sum of its proper divisors (4144815005677).

31023312313123 is a wasteful number, since it uses less digits than its factorization.

31023312313123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125600454741.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 31023312313123 its reverse (32131321332013), we get a palindrome (63154633645136).

The spelling of 31023312313123 in words is "thirty-one trillion, twenty-three billion, three hundred twelve million, three hundred thirteen thousand, one hundred twenty-three".