11121211012131 has 24 divisors (see below), whose sum is σ = 18109838568080. Its totient is φ = 6740127884160.

The previous prime is 11121211011997. The next prime is 11121211012141. The reversal of 11121211012131 is 13121011212111.

It is not a de Polignac number, because 11121211012131 - 2¹⁹ = 11121210487843 is a prime.

It is a super-2 number, since 2×11121211012131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11121211012141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1702049230 + ... + 1702055763.

Almost surely, 2^{11121211012131} is an apocalyptic number.

11121211012131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11121211012131 is a deficient number, since it is larger than the sum of its proper divisors (6988627555949).

11121211012131 is a wasteful number, since it uses less digits than its factorization.

11121211012131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3404105024 (or 3404105007 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 18.

Adding to 11121211012131 its reverse (13121011212111), we get a palindrome (24242222224242).

The spelling of 11121211012131 in words is "eleven trillion, one hundred twenty-one billion, two hundred eleven million, twelve thousand, one hundred thirty-one".