355334290121 has 2 divisors, whose sum is σ = 355334290122. Its totient is φ = 355334290120.

The previous prime is 355334290039. The next prime is 355334290127. The reversal of 355334290121 is 121092433553.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 227982375625 + 127351914496 = 477475^2 + 356864^2 .

It is a cyclic number.

It is not a de Polignac number, because 355334290121 - 2¹⁸ = 355334027977 is a prime.

It is not a weakly prime, because it can be changed into another prime (355334290127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177667145060 + 177667145061.

It is an arithmetic number, because the mean of its divisors is an integer number (177667145061).

Almost surely, 2^355334290121 is an apocalyptic number.

It is an amenable number.

355334290121 is a deficient number, since it is larger than the sum of its proper divisors (1).

355334290121 is an equidigital number, since it uses as much as digits as its factorization.

355334290121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 38.

It can be divided in two parts, 3553342 and 90121, that added together give a palindrome (3643463).

The spelling of 355334290121 in words is "three hundred fifty-five billion, three hundred thirty-four million, two hundred ninety thousand, one hundred twenty-one".