1013720163 has 4 divisors (see below), whose sum is σ = 1351626888. Its totient is φ = 675813440.

The previous prime is 1013720161. The next prime is 1013720177. The reversal of 1013720163 is 3610273101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3610273101 = 3 ⋅1203424367.

It is a cyclic number.

It is not a de Polignac number, because 1013720163 - 2¹ = 1013720161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1013720161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168953358 + ... + 168953363.

It is an arithmetic number, because the mean of its divisors is an integer number (337906722).

Almost surely, 2^1013720163 is an apocalyptic number.

1013720163 is a deficient number, since it is larger than the sum of its proper divisors (337906725).

1013720163 is an equidigital number, since it uses as much as digits as its factorization.

1013720163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337906724.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 1013720163 is about 31838.9723923370. The cubic root of 1013720163 is about 1004.5526297755.

Adding to 1013720163 its reverse (3610273101), we get a palindrome (4623993264).

The spelling of 1013720163 in words is "one billion, thirteen million, seven hundred twenty thousand, one hundred sixty-three".