102010201049 has 2 divisors, whose sum is σ = 102010201050. Its totient is φ = 102010201048.

The previous prime is 102010201019. The next prime is 102010201087. The reversal of 102010201049 is 940102010201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83174560000 + 18835641049 = 288400^2 + 137243^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102010201049 is a prime.

It is a super-2 number, since 2×102010201049² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102010201049.

It is not a weakly prime, because it can be changed into another prime (102010201019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51005100524 + 51005100525.

It is an arithmetic number, because the mean of its divisors is an integer number (51005100525).

Almost surely, 2^102010201049 is an apocalyptic number.

It is an amenable number.

102010201049 is a deficient number, since it is larger than the sum of its proper divisors (1).

102010201049 is an equidigital number, since it uses as much as digits as its factorization.

102010201049 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 102010201049 in words is "one hundred two billion, ten million, two hundred one thousand, forty-nine".