120711663 has 6 divisors (see below), whose sum is σ = 174361304. Its totient is φ = 80474436.

The previous prime is 120711607. The next prime is 120711671. The reversal of 120711663 is 366117021.

It is not a de Polignac number, because 120711663 - 2¹⁴ = 120695279 is a prime.

It is a super-3 number, since 3×120711663³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120711683) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6706195 + ... + 6706212.

Almost surely, 2^120711663 is an apocalyptic number.

120711663 is a deficient number, since it is larger than the sum of its proper divisors (53649641).

120711663 is a wasteful number, since it uses less digits than its factorization.

120711663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13412413 (or 13412410 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 120711663 is about 10986.8859555381. The cubic root of 120711663 is about 494.2155558058.

Adding to 120711663 its reverse (366117021), we get a palindrome (486828684).

The spelling of 120711663 in words is "one hundred twenty million, seven hundred eleven thousand, six hundred sixty-three".