120161161021 has 8 divisors (see below), whose sum is σ = 131121777600. Its totient is φ = 109206690240.

The previous prime is 120161160991. The next prime is 120161161037.

It is a happy number.

120161161021 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120161161021 - 2⁷ = 120161160893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120161160983 and 120161161001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120161161051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1495516 + ... + 1573813.

It is an arithmetic number, because the mean of its divisors is an integer number (16390222200).

Almost surely, 2^120161161021 is an apocalyptic number.

120161161021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120161161021 is a deficient number, since it is larger than the sum of its proper divisors (10960616579).

120161161021 is a wasteful number, since it uses less digits than its factorization.

120161161021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3072899.

The product of its (nonzero) digits is 144, while the sum is 22.

It can be divided in two parts, 120161 and 161021, that added together give a palindrome (281182).

The spelling of 120161161021 in words is "one hundred twenty billion, one hundred sixty-one million, one hundred sixty-one thousand, twenty-one".