2123011320337 has 2 divisors, whose sum is σ = 2123011320338. Its totient is φ = 2123011320336.

The previous prime is 2123011320319. The next prime is 2123011320359. The reversal of 2123011320337 is 7330231103212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1993642337296 + 129368983041 = 1411964^2 + 359679^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2123011320337 is a prime.

It is not a weakly prime, because it can be changed into another prime (2123011380337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061505660168 + 1061505660169.

It is an arithmetic number, because the mean of its divisors is an integer number (1061505660169).

Almost surely, 2^{2123011320337} is an apocalyptic number.

It is an amenable number.

2123011320337 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123011320337 is an equidigital number, since it uses as much as digits as its factorization.

2123011320337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 28.

Adding to 2123011320337 its reverse (7330231103212), we get a palindrome (9453242423549).

The spelling of 2123011320337 in words is "two trillion, one hundred twenty-three billion, eleven million, three hundred twenty thousand, three hundred thirty-seven".