355040121263 has 2 divisors, whose sum is σ = 355040121264. Its totient is φ = 355040121262.

The previous prime is 355040121259. The next prime is 355040121269. The reversal of 355040121263 is 362121040553.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 355040121263 - 2² = 355040121259 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (355040121269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177520060631 + 177520060632.

It is an arithmetic number, because the mean of its divisors is an integer number (177520060632).

Almost surely, 2^355040121263 is an apocalyptic number.

355040121263 is a deficient number, since it is larger than the sum of its proper divisors (1).

355040121263 is an equidigital number, since it uses as much as digits as its factorization.

355040121263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 355040121263 in words is "three hundred fifty-five billion, forty million, one hundred twenty-one thousand, two hundred sixty-three".