11554241213 has 4 divisors (see below), whose sum is σ = 11554552128. Its totient is φ = 11553930300.

The previous prime is 11554241177. The next prime is 11554241249. The reversal of 11554241213 is 31214245511.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (11554241177) and next prime (11554241249).

It is a cyclic number.

It is not a de Polignac number, because 11554241213 - 2²⁴ = 11537463997 is a prime.

It is a super-2 number, since 2×11554241213² (a number of 21 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 (11554241113) 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, 90731 + ... + 177032.

It is an arithmetic number, because the mean of its divisors is an integer number (2888638032).

Almost surely, 2^11554241213 is an apocalyptic number.

It is an amenable number.

11554241213 is a deficient number, since it is larger than the sum of its proper divisors (310915).

11554241213 is an equidigital number, since it uses as much as digits as its factorization.

11554241213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310914.

The product of its digits is 4800, while the sum is 29.

Adding to 11554241213 its reverse (31214245511), we get a palindrome (42768486724).

The spelling of 11554241213 in words is "eleven billion, five hundred fifty-four million, two hundred forty-one thousand, two hundred thirteen".