120111300181 has 2 divisors, whose sum is σ = 120111300182. Its totient is φ = 120111300180.

The previous prime is 120111300173. The next prime is 120111300223. The reversal of 120111300181 is 181003111021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63066276900 + 57045023281 = 251130^2 + 238841^2 .

It is an emirp because it is prime and its reverse (181003111021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120111300181 - 2³ = 120111300173 is a prime.

It is a super-2 number, since 2×120111300181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120111300121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60055650090 + 60055650091.

It is an arithmetic number, because the mean of its divisors is an integer number (60055650091).

Almost surely, 2^120111300181 is an apocalyptic number.

It is an amenable number.

120111300181 is a deficient number, since it is larger than the sum of its proper divisors (1).

120111300181 is an equidigital number, since it uses as much as digits as its factorization.

120111300181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 19.

The spelling of 120111300181 in words is "one hundred twenty billion, one hundred eleven million, three hundred thousand, one hundred eighty-one".