355311315523123 has 2 divisors, whose sum is σ = 355311315523124. Its totient is φ = 355311315523122.

The previous prime is 355311315523103. The next prime is 355311315523217. The reversal of 355311315523123 is 321325513113553.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 355311315523123 - 2²⁵ = 355311281968691 is a prime.

It is a super-2 number, since 2×355311315523123² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 355311315523123.

It is not a weakly prime, because it can be changed into another prime (355311315523103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177655657761561 + 177655657761562.

It is an arithmetic number, because the mean of its divisors is an integer number (177655657761562).

Almost surely, 2^{355311315523123} is an apocalyptic number.

355311315523123 is a deficient number, since it is larger than the sum of its proper divisors (1).

355311315523123 is an equidigital number, since it uses as much as digits as its factorization.

355311315523123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 607500, while the sum is 43.

Adding to 355311315523123 its reverse (321325513113553), we get a palindrome (676636828636676).

The spelling of 355311315523123 in words is "three hundred fifty-five trillion, three hundred eleven billion, three hundred fifteen million, five hundred twenty-three thousand, one hundred twenty-three".