11012011001 has 16 divisors (see below), whose sum is σ = 12228568704. Its totient is φ = 9863234304.

The previous prime is 11012010979. The next prime is 11012011009. The reversal of 11012011001 is 10011021011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11012011001 - 2²² = 11007816697 is a prime.

It is a super-2 number, since 2×11012011001² (a number of 21 digits) contains 22 as substring.

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 11012011001.

It is not an unprimeable number, because it can be changed into a prime (11012011009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5546 + ... + 148508.

It is an arithmetic number, because the mean of its divisors is an integer number (764285544).

Almost surely, 2^11012011001 is an apocalyptic number.

It is an amenable number.

11012011001 is a deficient number, since it is larger than the sum of its proper divisors (1216557703).

11012011001 is a wasteful number, since it uses less digits than its factorization.

11012011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143200.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 11012011001 its reverse (10011021011), we get a palindrome (21023032012).

It can be divided in two parts, 110120 and 11001, that added together give a palindrome (121121).

The spelling of 11012011001 in words is "eleven billion, twelve million, eleven thousand, one".