1111101001011 has 12 divisors (see below), whose sum is σ = 1605332200680. Its totient is φ = 740545447200.

The previous prime is 1111101000949. The next prime is 1111101001027. The reversal of 1111101001011 is 1101001011111.

It is not a de Polignac number, because 1111101001011 - 2¹⁴ = 1111100984627 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 = 1111101000984 and 1111101001002.

It is not an unprimeable number, because it can be changed into a prime (1111101001081) 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, 15675465 + ... + 15746186.

It is an arithmetic number, because the mean of its divisors is an integer number (133777683390).

Almost surely, 2^{1111101001011} is an apocalyptic number.

1111101001011 is a deficient number, since it is larger than the sum of its proper divisors (494231199669).

1111101001011 is a wasteful number, since it uses less digits than its factorization.

1111101001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31425586 (or 31425583 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 1111101001011 its reverse (1101001011111), we get a palindrome (2212102012122).

It can be divided in two parts, 111110100 and 1011, that added together give a palindrome (111111111).

The spelling of 1111101001011 in words is "one trillion, one hundred eleven billion, one hundred one million, one thousand, eleven".