7126988101 has 2 divisors, whose sum is σ = 7126988102. Its totient is φ = 7126988100.

The previous prime is 7126988093. The next prime is 7126988117. The reversal of 7126988101 is 1018896217.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5333380900 + 1793607201 = 73030^2 + 42351^2 .

It is a cyclic number.

It is not a de Polignac number, because 7126988101 - 2³ = 7126988093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7126988171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3563494050 + 3563494051.

It is an arithmetic number, because the mean of its divisors is an integer number (3563494051).

Almost surely, 2^7126988101 is an apocalyptic number.

It is an amenable number.

7126988101 is a deficient number, since it is larger than the sum of its proper divisors (1).

7126988101 is an equidigital number, since it uses as much as digits as its factorization.

7126988101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 43.

The square root of 7126988101 is about 84421.4907532436. The cubic root of 7126988101 is about 1924.4295246423.

The spelling of 7126988101 in words is "seven billion, one hundred twenty-six million, nine hundred eighty-eight thousand, one hundred one".