20351245353045 has 16 divisors (see below), whose sum is σ = 32562119222592. Its totient is φ = 10853955302400.

The previous prime is 20351245353041. The next prime is 20351245353059. The reversal of 20351245353045 is 54035354215302.

It is not a de Polignac number, because 20351245353045 - 2² = 20351245353041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20351245352988 and 20351245353006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20351245353041) 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, 1561845 + ... + 6568245.

It is an arithmetic number, because the mean of its divisors is an integer number (2035132451412).

Almost surely, 2^{20351245353045} is an apocalyptic number.

It is an amenable number.

20351245353045 is a deficient number, since it is larger than the sum of its proper divisors (12210873869547).

20351245353045 is a wasteful number, since it uses less digits than its factorization.

20351245353045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5277412.

The product of its (nonzero) digits is 1080000, while the sum is 42.

Adding to 20351245353045 its reverse (54035354215302), we get a palindrome (74386599568347).

The spelling of 20351245353045 in words is "twenty trillion, three hundred fifty-one billion, two hundred forty-five million, three hundred fifty-three thousand, forty-five".