120102100049 has 2 divisors, whose sum is σ = 120102100050. Its totient is φ = 120102100048.

The previous prime is 120102099979. The next prime is 120102100067. The reversal of 120102100049 is 940001201021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120065715025 + 36385024 = 346505^2 + 6032^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120102100049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120102100049.

It is not a weakly prime, because it can be changed into another prime (120102100099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60051050024 + 60051050025.

It is an arithmetic number, because the mean of its divisors is an integer number (60051050025).

Almost surely, 2^120102100049 is an apocalyptic number.

It is an amenable number.

120102100049 is a deficient number, since it is larger than the sum of its proper divisors (1).

120102100049 is an equidigital number, since it uses as much as digits as its factorization.

120102100049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 120102100049 in words is "one hundred twenty billion, one hundred two million, one hundred thousand, forty-nine".