231310020122 has 8 divisors (see below), whose sum is σ = 346974782196. Its totient is φ = 115651759392.

The previous prime is 231310020121. The next prime is 231310020157. The reversal of 231310020122 is 221020013132.

It can be written as a sum of positive squares in 2 ways, for example, as 194427201721 + 36882818401 = 440939^2 + 192049^2 .

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

It is a super-4 number, since 4×231310020122⁴ (a number of 47 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231310020122.

It is not an unprimeable number, because it can be changed into a prime (231310020121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1535393 + ... + 1679300.

Almost surely, 2^231310020122 is an apocalyptic number.

231310020122 is a deficient number, since it is larger than the sum of its proper divisors (115664762074).

231310020122 is a wasteful number, since it uses less digits than its factorization.

231310020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3250672.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 231310020122 its reverse (221020013132), we get a palindrome (452330033254).

The spelling of 231310020122 in words is "two hundred thirty-one billion, three hundred ten million, twenty thousand, one hundred twenty-two".