20427117106 has 32 divisors (see below), whose sum is σ = 34036627968. Its totient is φ = 9116634240.

The previous prime is 20427117101. The next prime is 20427117107. The reversal of 20427117106 is 60171172402.

It is a super-2 number, since 2×20427117106² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20427117101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329620 + ... + 386656.

It is an arithmetic number, because the mean of its divisors is an integer number (1063644624).

Almost surely, 2^20427117106 is an apocalyptic number.

20427117106 is a deficient number, since it is larger than the sum of its proper divisors (13609510862).

20427117106 is a wasteful number, since it uses less digits than its factorization.

20427117106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57346.

The product of its (nonzero) digits is 4704, while the sum is 31.

Adding to 20427117106 its reverse (60171172402), we get a palindrome (80598289508).

The spelling of 20427117106 in words is "twenty billion, four hundred twenty-seven million, one hundred seventeen thousand, one hundred six".