123293381 has 2 divisors, whose sum is σ = 123293382. Its totient is φ = 123293380.

The previous prime is 123293377. The next prime is 123293389. The reversal of 123293381 is 183392321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108784900 + 14508481 = 10430^2 + 3809^2 .

It is a cyclic number.

It is not a de Polignac number, because 123293381 - 2² = 123293377 is a prime.

It is a super-2 number, since 2×123293381² = 30402515596822322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123293389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61646690 + 61646691.

It is an arithmetic number, because the mean of its divisors is an integer number (61646691).

Almost surely, 2^123293381 is an apocalyptic number.

It is an amenable number.

123293381 is a deficient number, since it is larger than the sum of its proper divisors (1).

123293381 is an equidigital number, since it uses as much as digits as its factorization.

123293381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 32.

The square root of 123293381 is about 11103.7552656748. The cubic root of 123293381 is about 497.7140730022.

The spelling of 123293381 in words is "one hundred twenty-three million, two hundred ninety-three thousand, three hundred eighty-one".