120019723161 has 16 divisors (see below), whose sum is σ = 176539332480. Its totient is φ = 72056868480.

The previous prime is 120019723141. The next prime is 120019723171. The reversal of 120019723161 is 161327910021.

It is not a de Polignac number, because 120019723161 - 2⁹ = 120019722649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120019723141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37528021 + ... + 37531218.

It is an arithmetic number, because the mean of its divisors is an integer number (11033708280).

Almost surely, 2^120019723161 is an apocalyptic number.

It is an amenable number.

120019723161 is a deficient number, since it is larger than the sum of its proper divisors (56519609319).

120019723161 is a wasteful number, since it uses less digits than its factorization.

120019723161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75059296.

The product of its (nonzero) digits is 4536, while the sum is 33.

The spelling of 120019723161 in words is "one hundred twenty billion, nineteen million, seven hundred twenty-three thousand, one hundred sixty-one".