349321581121 has 2 divisors, whose sum is σ = 349321581122. Its totient is φ = 349321581120.

The previous prime is 349321581109. The next prime is 349321581187. The reversal of 349321581121 is 121185123943.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223789548096 + 125532033025 = 473064^2 + 354305^2 .

It is a cyclic number.

It is not a de Polignac number, because 349321581121 - 2³⁵ = 314961842753 is a prime.

It is not a weakly prime, because it can be changed into another prime (349321582121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174660790560 + 174660790561.

It is an arithmetic number, because the mean of its divisors is an integer number (174660790561).

Almost surely, 2^349321581121 is an apocalyptic number.

It is an amenable number.

349321581121 is a deficient number, since it is larger than the sum of its proper divisors (1).

349321581121 is an equidigital number, since it uses as much as digits as its factorization.

349321581121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 40.

The spelling of 349321581121 in words is "three hundred forty-nine billion, three hundred twenty-one million, five hundred eighty-one thousand, one hundred twenty-one".