1201718073 has 16 divisors (see below), whose sum is σ = 1626520896. Its totient is φ = 789089280.

The previous prime is 1201718057. The next prime is 1201718093. The reversal of 1201718073 is 3708171021.

It is not a de Polignac number, because 1201718073 - 2⁴ = 1201718057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1201718073.

It is not an unprimeable number, because it can be changed into a prime (1201718093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76753 + ... + 91073.

It is an arithmetic number, because the mean of its divisors is an integer number (101657556).

Almost surely, 2^1201718073 is an apocalyptic number.

It is an amenable number.

1201718073 is a deficient number, since it is larger than the sum of its proper divisors (424802823).

1201718073 is a wasteful number, since it uses less digits than its factorization.

1201718073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14744.

The product of its (nonzero) digits is 2352, while the sum is 30.

The square root of 1201718073 is about 34665.8055293686. The cubic root of 1201718073 is about 1063.1654731756.

Adding to 1201718073 its reverse (3708171021), we get a palindrome (4909889094).

It can be divided in two parts, 12017180 and 73, that added together give a triangular number (12017253 = T₄₉₀₂).

The spelling of 1201718073 in words is "one billion, two hundred one million, seven hundred eighteen thousand, seventy-three".