123402353 has 2 divisors, whose sum is σ = 123402354. Its totient is φ = 123402352.

The previous prime is 123402347. The next prime is 123402379. The reversal of 123402353 is 353204321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116812864 + 6589489 = 10808^2 + 2567^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123402353 is a prime.

It is not a weakly prime, because it can be changed into another prime (123402313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61701176 + 61701177.

It is an arithmetic number, because the mean of its divisors is an integer number (61701177).

Almost surely, 2^123402353 is an apocalyptic number.

It is an amenable number.

123402353 is a deficient number, since it is larger than the sum of its proper divisors (1).

123402353 is an equidigital number, since it uses as much as digits as its factorization.

123402353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 123402353 is about 11108.6611704561. The cubic root of 123402353 is about 497.8606635339.

Adding to 123402353 its reverse (353204321), we get a palindrome (476606674).

The spelling of 123402353 in words is "one hundred twenty-three million, four hundred two thousand, three hundred fifty-three".