20010103318 has 4 divisors (see below), whose sum is σ = 30015154980. Its totient is φ = 10005051658.

The previous prime is 20010103291. The next prime is 20010103319. The reversal of 20010103318 is 81330101002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81330101002 = 2 ⋅40665050501.

It is a junction number, because it is equal to n+sod(n) for n = 20010103295 and 20010103304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010103319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5002525828 + ... + 5002525831.

It is an arithmetic number, because the mean of its divisors is an integer number (7503788745).

Almost surely, 2^20010103318 is an apocalyptic number.

20010103318 is a deficient number, since it is larger than the sum of its proper divisors (10005051662).

20010103318 is a wasteful number, since it uses less digits than its factorization.

20010103318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10005051661.

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 20010103318 in words is "twenty billion, ten million, one hundred three thousand, three hundred eighteen".