2061320999 has 2 divisors, whose sum is σ = 2061321000. Its totient is φ = 2061320998.

The previous prime is 2061320993. The next prime is 2061321007. The reversal of 2061320999 is 9990231602.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2061320999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2061320993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1030660499 + 1030660500.

It is an arithmetic number, because the mean of its divisors is an integer number (1030660500).

Almost surely, 2^2061320999 is an apocalyptic number.

2061320999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2061320999 is an equidigital number, since it uses as much as digits as its factorization.

2061320999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 2061320999 is about 45401.7730821165. The cubic root of 2061320999 is about 1272.6682486030.

The spelling of 2061320999 in words is "two billion, sixty-one million, three hundred twenty thousand, nine hundred ninety-nine".