355012123 has 2 divisors, whose sum is σ = 355012124. Its totient is φ = 355012122.

The previous prime is 355012121. The next prime is 355012127. The reversal of 355012123 is 321210553.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 355012123 - 2¹ = 355012121 is a prime.

Together with 355012121, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 355012094 and 355012103.

It is not a weakly prime, because it can be changed into another prime (355012121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177506061 + 177506062.

It is an arithmetic number, because the mean of its divisors is an integer number (177506062).

Almost surely, 2^355012123 is an apocalyptic number.

355012123 is a deficient number, since it is larger than the sum of its proper divisors (1).

355012123 is an equidigital number, since it uses as much as digits as its factorization.

355012123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 355012123 is about 18841.7653896868. The cubic root of 355012123 is about 708.0779350460.

Adding to 355012123 its reverse (321210553), we get a palindrome (676222676).

The spelling of 355012123 in words is "three hundred fifty-five million, twelve thousand, one hundred twenty-three".