20293212106 has 4 divisors (see below), whose sum is σ = 30439818162. Its totient is φ = 10146606052.

The previous prime is 20293212101. The next prime is 20293212139. The reversal of 20293212106 is 60121239202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19546556481 + 746655625 = 139809^2 + 27325^2 .

It is not an unprimeable number, because it can be changed into a prime (20293212101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5073303025 + ... + 5073303028.

Almost surely, 2^20293212106 is an apocalyptic number.

20293212106 is a deficient number, since it is larger than the sum of its proper divisors (10146606056).

20293212106 is a wasteful number, since it uses less digits than its factorization.

20293212106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10146606055.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 20293212106 in words is "twenty billion, two hundred ninety-three million, two hundred twelve thousand, one hundred six".