121501044350149 has 2 divisors, whose sum is σ = 121501044350150. Its totient is φ = 121501044350148.

The previous prime is 121501044350137. The next prime is 121501044350197. The reversal of 121501044350149 is 941053440105121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119863302204100 + 1637742146049 = 10948210^2 + 1279743^2 .

It is a cyclic number.

It is not a de Polignac number, because 121501044350149 - 2⁴⁵ = 86316672261317 is a prime.

It is a super-4 number, since 4×121501044350149⁴ (a number of 57 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121501044350449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60750522175074 + 60750522175075.

It is an arithmetic number, because the mean of its divisors is an integer number (60750522175075).

Almost surely, 2^{121501044350149} is an apocalyptic number.

It is an amenable number.

121501044350149 is a deficient number, since it is larger than the sum of its proper divisors (1).

121501044350149 is an equidigital number, since it uses as much as digits as its factorization.

121501044350149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 121501044350149 in words is "one hundred twenty-one trillion, five hundred one billion, forty-four million, three hundred fifty thousand, one hundred forty-nine".