2049215123 has 2 divisors, whose sum is σ = 2049215124. Its totient is φ = 2049215122.

The previous prime is 2049215059. The next prime is 2049215131. The reversal of 2049215123 is 3215129402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2049215123 - 2⁶ = 2049215059 is a prime.

It is not a weakly prime, because it can be changed into another prime (2049215143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1024607561 + 1024607562.

It is an arithmetic number, because the mean of its divisors is an integer number (1024607562).

Almost surely, 2^2049215123 is an apocalyptic number.

2049215123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2049215123 is an equidigital number, since it uses as much as digits as its factorization.

2049215123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2049215123 is about 45268.2573444130. The cubic root of 2049215123 is about 1270.1719491488.

The spelling of 2049215123 in words is "two billion, forty-nine million, two hundred fifteen thousand, one hundred twenty-three".