20351310220045 has 16 divisors (see below), whose sum is σ = 28171212870528. Its totient is φ = 13824761866560.

The previous prime is 20351310219997. The next prime is 20351310220099. The reversal of 20351310220045 is 54002201315302.

It is not a de Polignac number, because 20351310220045 - 2¹³ = 20351310211853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20351310219995 and 20351310220022.

It is a congruent number.

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, 2717127126 + ... + 2717134615.

It is an arithmetic number, because the mean of its divisors is an integer number (1760700804408).

Almost surely, 2^{20351310220045} is an apocalyptic number.

It is an amenable number.

20351310220045 is a deficient number, since it is larger than the sum of its proper divisors (7819902650483).

20351310220045 is a wasteful number, since it uses less digits than its factorization.

20351310220045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5434261860.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 20351310220045 its reverse (54002201315302), we get a palindrome (74353511535347).

The spelling of 20351310220045 in words is "twenty trillion, three hundred fifty-one billion, three hundred ten million, two hundred twenty thousand, forty-five".