2161331533093 has 2 divisors, whose sum is σ = 2161331533094. Its totient is φ = 2161331533092.

The previous prime is 2161331533061. The next prime is 2161331533117. The reversal of 2161331533093 is 3903351331612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2108600218404 + 52731314689 = 1452102^2 + 229633^2 .

It is a cyclic number.

It is not a de Polignac number, because 2161331533093 - 2⁵ = 2161331533061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2161331533013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1080665766546 + 1080665766547.

It is an arithmetic number, because the mean of its divisors is an integer number (1080665766547).

Almost surely, 2^{2161331533093} is an apocalyptic number.

It is an amenable number.

2161331533093 is a deficient number, since it is larger than the sum of its proper divisors (1).

2161331533093 is an equidigital number, since it uses as much as digits as its factorization.

2161331533093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 131220, while the sum is 40.

The spelling of 2161331533093 in words is "two trillion, one hundred sixty-one billion, three hundred thirty-one million, five hundred thirty-three thousand, ninety-three".