2161736023 has 2 divisors, whose sum is σ = 2161736024. Its totient is φ = 2161736022.

The previous prime is 2161735993. The next prime is 2161736131. The reversal of 2161736023 is 3206371612.

2161736023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2161736023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2161736323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1080868011 + 1080868012.

It is an arithmetic number, because the mean of its divisors is an integer number (1080868012).

Almost surely, 2^2161736023 is an apocalyptic number.

2161736023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2161736023 is an equidigital number, since it uses as much as digits as its factorization.

2161736023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 2161736023 is about 46494.4730371256. The cubic root of 2161736023 is about 1293.0070312985.

The spelling of 2161736023 in words is "two billion, one hundred sixty-one million, seven hundred thirty-six thousand, twenty-three".