121507597145101 has 2 divisors, whose sum is σ = 121507597145102. Its totient is φ = 121507597145100.

The previous prime is 121507597145069. The next prime is 121507597145167. The reversal of 121507597145101 is 101541795705121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86736644189001 + 34770952956100 = 9313251^2 + 5896690^2 .

It is a cyclic number.

It is not a de Polignac number, because 121507597145101 - 2⁵ = 121507597145069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121507597140101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60753798572550 + 60753798572551.

It is an arithmetic number, because the mean of its divisors is an integer number (60753798572551).

Almost surely, 2^{121507597145101} is an apocalyptic number.

It is an amenable number.

121507597145101 is a deficient number, since it is larger than the sum of its proper divisors (1).

121507597145101 is an equidigital number, since it uses as much as digits as its factorization.

121507597145101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 441000, while the sum is 49.

The spelling of 121507597145101 in words is "one hundred twenty-one trillion, five hundred seven billion, five hundred ninety-seven million, one hundred forty-five thousand, one hundred one".