671062335121 has 2 divisors, whose sum is σ = 671062335122. Its totient is φ = 671062335120.

The previous prime is 671062335113. The next prime is 671062335127. The reversal of 671062335121 is 121533260176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 553780058896 + 117282276225 = 744164^2 + 342465^2 .

It is a cyclic number.

It is not a de Polignac number, because 671062335121 - 2³ = 671062335113 is a prime.

It is not a weakly prime, because it can be changed into another prime (671062335127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335531167560 + 335531167561.

It is an arithmetic number, because the mean of its divisors is an integer number (335531167561).

Almost surely, 2^671062335121 is an apocalyptic number.

It is an amenable number.

671062335121 is a deficient number, since it is larger than the sum of its proper divisors (1).

671062335121 is an equidigital number, since it uses as much as digits as its factorization.

671062335121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 37.

Adding to 671062335121 its reverse (121533260176), we get a palindrome (792595595297).

The spelling of 671062335121 in words is "six hundred seventy-one billion, sixty-two million, three hundred thirty-five thousand, one hundred twenty-one".