1010101111601 has 2 divisors, whose sum is σ = 1010101111602. Its totient is φ = 1010101111600.

The previous prime is 1010101111597. The next prime is 1010101111609. The reversal of 1010101111601 is 1061111010101.

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., 559324494400 + 450776617201 = 747880^2 + 671399^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010101111601 - 2² = 1010101111597 is a prime.

It is not a weakly prime, because it can be changed into another prime (1010101111609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505050555800 + 505050555801.

It is an arithmetic number, because the mean of its divisors is an integer number (505050555801).

Almost surely, 2^{1010101111601} is an apocalyptic number.

It is an amenable number.

1010101111601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010101111601 is an equidigital number, since it uses as much as digits as its factorization.

1010101111601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 14.

Adding to 1010101111601 its reverse (1061111010101), we get a palindrome (2071212121702).

The spelling of 1010101111601 in words is "one trillion, ten billion, one hundred one million, one hundred eleven thousand, six hundred one".