20049311 has 2 divisors, whose sum is σ = 20049312. Its totient is φ = 20049310.

The previous prime is 20049277. The next prime is 20049319. The reversal of 20049311 is 11394002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20049311 - 2⁶ = 20049247 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20049319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10024655 + 10024656.

It is an arithmetic number, because the mean of its divisors is an integer number (10024656).

Almost surely, 2^20049311 is an apocalyptic number.

20049311 is a deficient number, since it is larger than the sum of its proper divisors (1).

20049311 is an equidigital number, since it uses as much as digits as its factorization.

20049311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 20049311 is about 4477.6456983553. The cubic root of 20049311 is about 271.6646629801.

The spelling of 20049311 in words is "twenty million, forty-nine thousand, three hundred eleven".