2021703118 has 4 divisors (see below), whose sum is σ = 3032554680. Its totient is φ = 1010851558.

The previous prime is 2021703107. The next prime is 2021703119. The reversal of 2021703118 is 8113071202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2021703092 and 2021703101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021703119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505425778 + ... + 505425781.

It is an arithmetic number, because the mean of its divisors is an integer number (758138670).

Almost surely, 2^2021703118 is an apocalyptic number.

2021703118 is a deficient number, since it is larger than the sum of its proper divisors (1010851562).

2021703118 is a wasteful number, since it uses less digits than its factorization.

2021703118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010851561.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 2021703118 is about 44963.3530555718. The cubic root of 2021703118 is about 1264.4620329121.

The spelling of 2021703118 in words is "two billion, twenty-one million, seven hundred three thousand, one hundred eighteen".