20313106541450 has 12 divisors (see below), whose sum is σ = 37782378167190. Its totient is φ = 8125242616560.

The previous prime is 20313106541437. The next prime is 20313106541489. The reversal of 20313106541450 is 5414560131302.

It can be written as a sum of positive squares in 3 ways, for example, as 19467252933241 + 845853608209 = 4412171^2 + 919703^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20313106541450.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 203131065365 + ... + 203131065464.

Almost surely, 2^{20313106541450} is an apocalyptic number.

20313106541450 is a deficient number, since it is larger than the sum of its proper divisors (17469271625740).

20313106541450 is a wasteful number, since it uses less digits than its factorization.

20313106541450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406262130841 (or 406262130836 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 20313106541450 its reverse (5414560131302), we get a palindrome (25727666672752).

The spelling of 20313106541450 in words is "twenty trillion, three hundred thirteen billion, one hundred six million, five hundred forty-one thousand, four hundred fifty".