11212120413 has 32 divisors (see below), whose sum is σ = 17953017600. Its totient is φ = 6874797888.

The previous prime is 11212120411. The next prime is 11212120421. The reversal of 11212120413 is 31402121211.

11212120413 is a `hidden beast` number, since 112 + 121 + 20 + 413 = 666.

11212120413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11212120413 - 2¹ = 11212120411 is a prime.

It is a super-2 number, since 2×11212120413² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212120411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39568 + ... + 154886.

It is an arithmetic number, because the mean of its divisors is an integer number (561031800).

Almost surely, 2^11212120413 is an apocalyptic number.

11212120413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11212120413 is a deficient number, since it is larger than the sum of its proper divisors (6740897187).

11212120413 is a wasteful number, since it uses less digits than its factorization.

11212120413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115618 (or 115612 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11212120413 its reverse (31402121211), we get a palindrome (42614241624).

The spelling of 11212120413 in words is "eleven billion, two hundred twelve million, one hundred twenty thousand, four hundred thirteen".