123273013 has 2 divisors, whose sum is σ = 123273014. Its totient is φ = 123273012.

The previous prime is 123272999. The next prime is 123273041. The reversal of 123273013 is 310372321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96471684 + 26801329 = 9822^2 + 5177^2 .

It is a cyclic number.

It is not a de Polignac number, because 123273013 - 2¹³ = 123264821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123273043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61636506 + 61636507.

It is an arithmetic number, because the mean of its divisors is an integer number (61636507).

Almost surely, 2^123273013 is an apocalyptic number.

It is an amenable number.

123273013 is a deficient number, since it is larger than the sum of its proper divisors (1).

123273013 is an equidigital number, since it uses as much as digits as its factorization.

123273013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 123273013 is about 11102.8380606041. The cubic root of 123273013 is about 497.6866641274.

The spelling of 123273013 in words is "one hundred twenty-three million, two hundred seventy-three thousand, thirteen".