20430011 has 12 divisors (see below), whose sum is σ = 23863392. Its totient is φ = 17439408.

The previous prime is 20429993. The next prime is 20430029. The reversal of 20430011 is 11003402.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20429993) and next prime (20430029).

It is not a de Polignac number, because 20430011 - 2¹⁰ = 20428987 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20429974 and 20430001.

It is not an unprimeable number, because it can be changed into a prime (20430041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13646 + ... + 15068.

It is an arithmetic number, because the mean of its divisors is an integer number (1988616).

Almost surely, 2^20430011 is an apocalyptic number.

20430011 is a deficient number, since it is larger than the sum of its proper divisors (3433381).

20430011 is a wasteful number, since it uses less digits than its factorization.

20430011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730 (or 1723 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 20430011 is about 4519.9569688217. The cubic root of 20430011 is about 273.3733659720.

Adding to 20430011 its reverse (11003402), we get a palindrome (31433413).

The spelling of 20430011 in words is "twenty million, four hundred thirty thousand, eleven".