355111454123 has 2 divisors, whose sum is σ = 355111454124. Its totient is φ = 355111454122.

The previous prime is 355111454111. The next prime is 355111454149. The reversal of 355111454123 is 321454111553.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 355111454123 - 2¹⁸ = 355111191979 is a prime.

It is a super-2 number, since 2×355111454123² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (355111456123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177555727061 + 177555727062.

It is an arithmetic number, because the mean of its divisors is an integer number (177555727062).

Almost surely, 2^355111454123 is an apocalyptic number.

355111454123 is a deficient number, since it is larger than the sum of its proper divisors (1).

355111454123 is an equidigital number, since it uses as much as digits as its factorization.

355111454123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36000, while the sum is 35.

Adding to 355111454123 its reverse (321454111553), we get a palindrome (676565565676).

The spelling of 355111454123 in words is "three hundred fifty-five billion, one hundred eleven million, four hundred fifty-four thousand, one hundred twenty-three".