1010101111111 has 8 divisors (see below), whose sum is σ = 1010521036800. Its totient is φ = 1009681272600.

The previous prime is 1010101111051. The next prime is 1010101111183. The reversal of 1010101111111 is 1111111010101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1010101111111 - 2¹⁹ = 1010100586823 is a prime.

It is a super-3 number, since 3×1010101111111³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

1010101111111 is a modest number, since divided by 1111111 gives 101010 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010101111511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32410386 + ... + 32441536.

It is an arithmetic number, because the mean of its divisors is an integer number (126315129600).

Almost surely, 2^{1010101111111} is an apocalyptic number.

1010101111111 is a deficient number, since it is larger than the sum of its proper divisors (419925689).

1010101111111 is an equidigital number, since it uses as much as digits as its factorization.

1010101111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43589.

The product of its (nonzero) digits is 1, while the sum is 10.

Adding to 1010101111111 its reverse (1111111010101), we get a palindrome (2121212121212).

It can be divided in two parts, 1010101 and 111111, that multiplied together give a palindrome (112233332211).

The spelling of 1010101111111 in words is "one trillion, ten billion, one hundred one million, one hundred eleven thousand, one hundred eleven".