18111001002213 has 16 divisors (see below), whose sum is σ = 27721472393216. Its totient is φ = 10302734712240.

The previous prime is 18111001002109. The next prime is 18111001002331. The reversal of 18111001002213 is 31220010011181.

It is not a de Polignac number, because 18111001002213 - 2¹⁸ = 18111000740069 is a prime.

It is a super-4 number, since 4×18111001002213⁴ (a number of 54 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18111001002213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18111001006213) 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, 1933691773 + ... + 1933701138.

It is an arithmetic number, because the mean of its divisors is an integer number (1732592024576).

Almost surely, 2^{18111001002213} is an apocalyptic number.

It is an amenable number.

18111001002213 is a deficient number, since it is larger than the sum of its proper divisors (9610471391003).

18111001002213 is a wasteful number, since it uses less digits than its factorization.

18111001002213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3867393144.

The product of its (nonzero) digits is 96, while the sum is 21.

Adding to 18111001002213 its reverse (31220010011181), we get a palindrome (49331011013394).

The spelling of 18111001002213 in words is "eighteen trillion, one hundred eleven billion, one million, two thousand, two hundred thirteen".