11011210001213 has 4 divisors (see below), whose sum is σ = 11267284652448. Its totient is φ = 10755135349980.

The previous prime is 11011210001203. The next prime is 11011210001219. The reversal of 11011210001213 is 31210001211011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11011210001213 is a prime.

It is a super-2 number, since 2×11011210001213² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011210001219) 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, 128037325553 + ... + 128037325638.

It is an arithmetic number, because the mean of its divisors is an integer number (2816821163112).

Almost surely, 2^{11011210001213} is an apocalyptic number.

It is an amenable number.

11011210001213 is a deficient number, since it is larger than the sum of its proper divisors (256074651235).

11011210001213 is an equidigital number, since it uses as much as digits as its factorization.

11011210001213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256074651234.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 11011210001213 its reverse (31210001211011), we get a palindrome (42221211212224).

The spelling of 11011210001213 in words is "eleven trillion, eleven billion, two hundred ten million, one thousand, two hundred thirteen".