2123329973 has 2 divisors, whose sum is σ = 2123329974. Its totient is φ = 2123329972.

The previous prime is 2123329963. The next prime is 2123329979. The reversal of 2123329973 is 3799233212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2106626404 + 16703569 = 45898^2 + 4087^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123329973 - 2¹⁴ = 2123313589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2123329973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2123329979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061664986 + 1061664987.

It is an arithmetic number, because the mean of its divisors is an integer number (1061664987).

Almost surely, 2^2123329973 is an apocalyptic number.

It is an amenable number.

2123329973 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123329973 is an equidigital number, since it uses as much as digits as its factorization.

2123329973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 41.

The square root of 2123329973 is about 46079.6047400583. The cubic root of 2123329973 is about 1285.3039141465.

The spelling of 2123329973 in words is "two billion, one hundred twenty-three million, three hundred twenty-nine thousand, nine hundred seventy-three".