11130001211 has 4 divisors (see below), whose sum is σ = 12720001392. Its totient is φ = 9540001032.

The previous prime is 11130001159. The next prime is 11130001261. The reversal of 11130001211 is 11210003111.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11130001211 is a prime.

It is a super-2 number, since 2×11130001211² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11130001192 and 11130001201.

It is not an unprimeable number, because it can be changed into a prime (11130001261) 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, 795000080 + ... + 795000093.

It is an arithmetic number, because the mean of its divisors is an integer number (3180000348).

Almost surely, 2^11130001211 is an apocalyptic number.

11130001211 is a deficient number, since it is larger than the sum of its proper divisors (1590000181).

11130001211 is an equidigital number, since it uses as much as digits as its factorization.

11130001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590000180.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 11130001211 its reverse (11210003111), we get a palindrome (22340004322).

The spelling of 11130001211 in words is "eleven billion, one hundred thirty million, one thousand, two hundred eleven".