120601881 has 6 divisors (see below), whose sum is σ = 174202730. Its totient is φ = 80401248.

The previous prime is 120601879. The next prime is 120601883. The reversal of 120601881 is 188106021.

It is an interprime number because it is at equal distance from previous prime (120601879) and next prime (120601883).

It can be written as a sum of positive squares in only one way, i.e., 71825625 + 48776256 = 8475^2 + 6984^2 .

It is not a de Polignac number, because 120601881 - 2¹ = 120601879 is a prime.

It is a super-2 number, since 2×120601881² = 29089627401476322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120601883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6700096 + ... + 6700113.

Almost surely, 2^120601881 is an apocalyptic number.

It is an amenable number.

120601881 is a deficient number, since it is larger than the sum of its proper divisors (53600849).

120601881 is a wasteful number, since it uses less digits than its factorization.

120601881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13400215 (or 13400212 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 120601881 is about 10981.8887719736. Note that the first 3 decimals coincide. The cubic root of 120601881 is about 494.0656878562.

The spelling of 120601881 in words is "one hundred twenty million, six hundred one thousand, eight hundred eighty-one".