2113123297 has 2 divisors, whose sum is σ = 2113123298. Its totient is φ = 2113123296.

The previous prime is 2113123289. The next prime is 2113123319. The reversal of 2113123297 is 7923213112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1958593536 + 154529761 = 44256^2 + 12431^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113123297 - 2³ = 2113123289 is a prime.

It is not a weakly prime, because it can be changed into another prime (2113129297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056561648 + 1056561649.

It is an arithmetic number, because the mean of its divisors is an integer number (1056561649).

Almost surely, 2^2113123297 is an apocalyptic number.

It is an amenable number.

2113123297 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113123297 is an equidigital number, since it uses as much as digits as its factorization.

2113123297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 31.

The square root of 2113123297 is about 45968.7208545115. The cubic root of 2113123297 is about 1283.2411546693.

The spelling of 2113123297 in words is "two billion, one hundred thirteen million, one hundred twenty-three thousand, two hundred ninety-seven".