20311140643114 has 24 divisors (see below), whose sum is σ = 31124118952332. Its totient is φ = 9940943151360.

The previous prime is 20311140643067. The next prime is 20311140643121. The reversal of 20311140643114 is 41134604111302.

It can be written as a sum of positive squares in 6 ways, for example, as 5586921686889 + 14724218956225 = 2363667^2 + 3837215^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1742197 + ... + 6607384.

Almost surely, 2^{20311140643114} is an apocalyptic number.

20311140643114 is a deficient number, since it is larger than the sum of its proper divisors (10812978309218).

20311140643114 is an equidigital number, since it uses as much as digits as its factorization.

20311140643114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8350122 (or 8350069 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 20311140643114 its reverse (41134604111302), we get a palindrome (61445744754416).

The spelling of 20311140643114 in words is "twenty trillion, three hundred eleven billion, one hundred forty million, six hundred forty-three thousand, one hundred fourteen".