11031211992 has 32 divisors (see below), whose sum is σ = 27665046000. Its totient is φ = 3665468544.

The previous prime is 11031211981. The next prime is 11031212011. The reversal of 11031211992 is 29911213011.

11031211992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 717367 + ... + 732582.

Almost surely, 2^11031211992 is an apocalyptic number.

11031211992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11031211992 is an abundant number, since it is smaller than the sum of its proper divisors (16633834008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11031211992 is a wasteful number, since it uses less digits than its factorization.

11031211992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450275 (or 1450271 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 30.

The spelling of 11031211992 in words is "eleven billion, thirty-one million, two hundred eleven thousand, nine hundred ninety-two".