2111253101 has 2 divisors, whose sum is σ = 2111253102. Its totient is φ = 2111253100.

The previous prime is 2111253097. The next prime is 2111253149. The reversal of 2111253101 is 1013521112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1374184900 + 737068201 = 37070^2 + 27149^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111253101 - 2² = 2111253097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2111253101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111253181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055626550 + 1055626551.

It is an arithmetic number, because the mean of its divisors is an integer number (1055626551).

Almost surely, 2^2111253101 is an apocalyptic number.

It is an amenable number.

2111253101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111253101 is an equidigital number, since it uses as much as digits as its factorization.

2111253101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 2111253101 is about 45948.3743020360. The cubic root of 2111253101 is about 1282.8624702149.

Adding to 2111253101 its reverse (1013521112), we get a palindrome (3124774213).

The spelling of 2111253101 in words is "two billion, one hundred eleven million, two hundred fifty-three thousand, one hundred one".