121002023010181 has 2 divisors, whose sum is σ = 121002023010182. Its totient is φ = 121002023010180.

The previous prime is 121002023010067. The next prime is 121002023010263. The reversal of 121002023010181 is 181010320200121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119765554625025 + 1236468385156 = 10943745^2 + 1111966^2 .

It is an emirp because it is prime and its reverse (181010320200121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121002023010181 - 2⁷ = 121002023010053 is a prime.

It is a super-2 number, since 2×121002023010181² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121002023013181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60501011505090 + 60501011505091.

It is an arithmetic number, because the mean of its divisors is an integer number (60501011505091).

Almost surely, 2^{121002023010181} is an apocalyptic number.

It is an amenable number.

121002023010181 is a deficient number, since it is larger than the sum of its proper divisors (1).

121002023010181 is an equidigital number, since it uses as much as digits as its factorization.

121002023010181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 22.

The spelling of 121002023010181 in words is "one hundred twenty-one trillion, two billion, twenty-three million, ten thousand, one hundred eighty-one".