1020101149 has 2 divisors, whose sum is σ = 1020101150. Its totient is φ = 1020101148.

The previous prime is 1020101143. The next prime is 1020101161. The reversal of 1020101149 is 9411010201.

1020101149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 889113124 + 130988025 = 29818^2 + 11445^2 .

It is an emirp because it is prime and its reverse (9411010201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1020101149 - 2³ = 1020101141 is a prime.

It is a super-2 number, since 2×1020101149² = 2081212708382240402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020101141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510050574 + 510050575.

It is an arithmetic number, because the mean of its divisors is an integer number (510050575).

Almost surely, 2^1020101149 is an apocalyptic number.

It is an amenable number.

1020101149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020101149 is an equidigital number, since it uses as much as digits as its factorization.

1020101149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1020101149 is about 31939.0223551066. The cubic root of 1020101149 is about 1006.6559826042.

The spelling of 1020101149 in words is "one billion, twenty million, one hundred one thousand, one hundred forty-nine".