231123121330 has 64 divisors (see below), whose sum is σ = 439840482048. Its totient is φ = 87347070720.

The previous prime is 231123121321. The next prime is 231123121343. The reversal of 231123121330 is 33121321132.

It is a super-3 number, since 3×231123121330³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1546672 + ... + 1689508.

It is an arithmetic number, because the mean of its divisors is an integer number (6872507532).

Almost surely, 2^231123121330 is an apocalyptic number.

231123121330 is a deficient number, since it is larger than the sum of its proper divisors (208717360718).

231123121330 is a wasteful number, since it uses less digits than its factorization.

231123121330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143011.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 231123121330 its reverse (33121321132), we get a palindrome (264244442462).

The spelling of 231123121330 in words is "two hundred thirty-one billion, one hundred twenty-three million, one hundred twenty-one thousand, three hundred thirty".