1020001111011 has 12 divisors (see below), whose sum is σ = 1474185125088. Its totient is φ = 679608346704.

The previous prime is 1020001110917. The next prime is 1020001111027. The reversal of 1020001111011 is 1101111000201.

It is not a de Polignac number, because 1020001111011 - 2⁷ = 1020001110883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1020001110984 and 1020001111002.

It is not an unprimeable number, because it can be changed into a prime (1020001111091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32683035 + ... + 32714228.

It is an arithmetic number, because the mean of its divisors is an integer number (122848760424).

Almost surely, 2^{1020001111011} is an apocalyptic number.

1020001111011 is a deficient number, since it is larger than the sum of its proper divisors (454184014077).

1020001111011 is a wasteful number, since it uses less digits than its factorization.

1020001111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65399002 (or 65398999 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 1020001111011 its reverse (1101111000201), we get a palindrome (2121112111212).

The spelling of 1020001111011 in words is "one trillion, twenty billion, one million, one hundred eleven thousand, eleven".