2321166402001 has 2 divisors, whose sum is σ = 2321166402002. Its totient is φ = 2321166402000.

The previous prime is 2321166401941. The next prime is 2321166402029. The reversal of 2321166402001 is 1002046611232.

It is an a-pointer prime, because the next prime (2321166402029) can be obtained adding 2321166402001 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1842599915776 + 478566486225 = 1357424^2 + 691785^2 .

It is a cyclic number.

It is not a de Polignac number, because 2321166402001 - 2¹⁵ = 2321166369233 is a prime.

It is not a weakly prime, because it can be changed into another prime (2321166402031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160583201000 + 1160583201001.

It is an arithmetic number, because the mean of its divisors is an integer number (1160583201001).

Almost surely, 2^{2321166402001} is an apocalyptic number.

It is an amenable number.

2321166402001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321166402001 is an equidigital number, since it uses as much as digits as its factorization.

2321166402001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 2321166402001 in words is "two trillion, three hundred twenty-one billion, one hundred sixty-six million, four hundred two thousand, one".