2113020101 has 2 divisors, whose sum is σ = 2113020102. Its totient is φ = 2113020100.

The previous prime is 2113020089. The next prime is 2113020131. The reversal of 2113020101 is 1010203112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1907068900 + 205951201 = 43670^2 + 14351^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113020101 - 2¹⁸ = 2112757957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2113020131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056510050 + 1056510051.

It is an arithmetic number, because the mean of its divisors is an integer number (1056510051).

Almost surely, 2^2113020101 is an apocalyptic number.

It is an amenable number.

2113020101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113020101 is an equidigital number, since it uses as much as digits as its factorization.

2113020101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2113020101 is about 45967.5983819037. The cubic root of 2113020101 is about 1283.2202649733.

Adding to 2113020101 its reverse (1010203112), we get a palindrome (3123223213).

The spelling of 2113020101 in words is "two billion, one hundred thirteen million, twenty thousand, one hundred one".