20358011 has 2 divisors, whose sum is σ = 20358012. Its totient is φ = 20358010.

The previous prime is 20358007. The next prime is 20358031. The reversal of 20358011 is 11085302.

It is an a-pointer prime, because the next prime (20358031) can be obtained adding 20358011 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20358011 - 2² = 20358007 is a prime.

It is a super-2 number, since 2×20358011² = 828897223752242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20358031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10179005 + 10179006.

It is an arithmetic number, because the mean of its divisors is an integer number (10179006).

Almost surely, 2^20358011 is an apocalyptic number.

20358011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20358011 is an equidigital number, since it uses as much as digits as its factorization.

20358011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 20358011 is about 4511.9852615008. The cubic root of 20358011 is about 273.0518446891.

The spelling of 20358011 in words is "twenty million, three hundred fifty-eight thousand, eleven".