20120306445746 has 32 divisors (see below), whose sum is σ = 32611033519680. Its totient is φ = 9255158231616.

The previous prime is 20120306445731. The next prime is 20120306445823. The reversal of 20120306445746 is 64754460302102.

It is a junction number, because it is equal to n+sod(n) for n = 20120306445697 and 20120306445706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86960105 + ... + 87191171.

It is an arithmetic number, because the mean of its divisors is an integer number (1019094797490).

Almost surely, 2^{20120306445746} is an apocalyptic number.

20120306445746 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20120306445746 is a deficient number, since it is larger than the sum of its proper divisors (12490727073934).

20120306445746 is a wasteful number, since it uses less digits than its factorization.

20120306445746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242298.

The product of its (nonzero) digits is 967680, while the sum is 44.

Adding to 20120306445746 its reverse (64754460302102), we get a palindrome (84874766747848).

The spelling of 20120306445746 in words is "twenty trillion, one hundred twenty billion, three hundred six million, four hundred forty-five thousand, seven hundred forty-six".