101011001001011 has 4 divisors (see below), whose sum is σ = 101066777370024. Its totient is φ = 100955224632000.

The previous prime is 101011001001007. The next prime is 101011001001023. The reversal of 101011001001011 is 110100100110101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101011001001011 - 2² = 101011001001007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101011001001011.

It is not an unprimeable number, because it can be changed into a prime (101011001001511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27888181790 + ... + 27888185411.

It is an arithmetic number, because the mean of its divisors is an integer number (25266694342506).

Almost surely, 2^{101011001001011} is an apocalyptic number.

101011001001011 is a deficient number, since it is larger than the sum of its proper divisors (55776369013).

101011001001011 is an equidigital number, since it uses as much as digits as its factorization.

101011001001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55776369012.

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 101011001001011 its reverse (110100100110101), we get a palindrome (211111101111112).

The spelling of 101011001001011 in words is "one hundred one trillion, eleven billion, one million, one thousand, eleven".