20303222012351 has 16 divisors (see below), whose sum is σ = 21767953996800. Its totient is φ = 18879121382400.

The previous prime is 20303222012341. The next prime is 20303222012387. The reversal of 20303222012351 is 15321022230302.

It is a cyclic number.

It is not a de Polignac number, because 20303222012351 - 2⁶ = 20303222012287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20303222012351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303222012341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13409135 + ... + 14846256.

It is an arithmetic number, because the mean of its divisors is an integer number (1360497124800).

Almost surely, 2^{20303222012351} is an apocalyptic number.

20303222012351 is a deficient number, since it is larger than the sum of its proper divisors (1464731984449).

20303222012351 is a wasteful number, since it uses less digits than its factorization.

20303222012351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28256110.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 20303222012351 its reverse (15321022230302), we get a palindrome (35624244242653).

The spelling of 20303222012351 in words is "twenty trillion, three hundred three billion, two hundred twenty-two million, twelve thousand, three hundred fifty-one".