201321131133061 has 2 divisors, whose sum is σ = 201321131133062. Its totient is φ = 201321131133060.

The previous prime is 201321131132999. The next prime is 201321131133127. The reversal of 201321131133061 is 160331131123102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200878747848900 + 442383284161 = 14173170^2 + 665119^2 .

It is a cyclic number.

It is not a de Polignac number, because 201321131133061 - 2¹¹ = 201321131131013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201321131133961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100660565566530 + 100660565566531.

It is an arithmetic number, because the mean of its divisors is an integer number (100660565566531).

Almost surely, 2^{201321131133061} is an apocalyptic number.

It is an amenable number.

201321131133061 is a deficient number, since it is larger than the sum of its proper divisors (1).

201321131133061 is an equidigital number, since it uses as much as digits as its factorization.

201321131133061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

Adding to 201321131133061 its reverse (160331131123102), we get a palindrome (361652262256163).

The spelling of 201321131133061 in words is "two hundred one trillion, three hundred twenty-one billion, one hundred thirty-one million, one hundred thirty-three thousand, sixty-one".