123130031333 has 2 divisors, whose sum is σ = 123130031334. Its totient is φ = 123130031332.

The previous prime is 123130031281. The next prime is 123130031351. The reversal of 123130031333 is 333130031321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86793284449 + 36336746884 = 294607^2 + 190622^2 .

It is an emirp because it is prime and its reverse (333130031321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123130031333 is a prime.

It is a super-2 number, since 2×123130031333² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123130031299 and 123130031308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123130031363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61565015666 + 61565015667.

It is an arithmetic number, because the mean of its divisors is an integer number (61565015667).

Almost surely, 2^123130031333 is an apocalyptic number.

It is an amenable number.

123130031333 is a deficient number, since it is larger than the sum of its proper divisors (1).

123130031333 is an equidigital number, since it uses as much as digits as its factorization.

123130031333 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 123130031333 its reverse (333130031321), we get a palindrome (456260062654).

The spelling of 123130031333 in words is "one hundred twenty-three billion, one hundred thirty million, thirty-one thousand, three hundred thirty-three".