1010120101 has 2 divisors, whose sum is σ = 1010120102. Its totient is φ = 1010120100.

The previous prime is 1010120029. The next prime is 1010120131. The reversal of 1010120101 is 1010210101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 539447076 + 470673025 = 23226^2 + 21695^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010120101 - 2²¹ = 1008022949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010120131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505060050 + 505060051.

It is an arithmetic number, because the mean of its divisors is an integer number (505060051).

Almost surely, 2^1010120101 is an apocalyptic number.

It is an amenable number.

1010120101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010120101 is an equidigital number, since it uses as much as digits as its factorization.

1010120101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 1010120101 is about 31782.3866473240. The cubic root of 1010120101 is about 1003.3620509459.

Adding to 1010120101 its reverse (1010210101), we get a palindrome (2020330202).

Subtracting 1010120101 from its reverse (1010210101), we obtain a square (90000 = 300²).

The spelling of 1010120101 in words is "one billion, ten million, one hundred twenty thousand, one hundred one".