1011001002111 has 12 divisors (see below), whose sum is σ = 1546236826992. Its totient is φ = 634353569856.

The previous prime is 1011001002101. The next prime is 1011001002131. The reversal of 1011001002111 is 1112001001101.

It is not a de Polignac number, because 1011001002111 - 2¹¹ = 1011001000063 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 = 1011001002093 and 1011001002102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011001002101) 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, 3303924691 + ... + 3303924996.

It is an arithmetic number, because the mean of its divisors is an integer number (128853068916).

Almost surely, 2^{1011001002111} is an apocalyptic number.

1011001002111 is a deficient number, since it is larger than the sum of its proper divisors (535235824881).

1011001002111 is a wasteful number, since it uses less digits than its factorization.

1011001002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6607849710 (or 6607849707 counting only the distinct ones).

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

Adding to 1011001002111 its reverse (1112001001101), we get a palindrome (2123002003212).

The spelling of 1011001002111 in words is "one trillion, eleven billion, one million, two thousand, one hundred eleven".