11020111312 has 20 divisors (see below), whose sum is σ = 24401675296. Its totient is φ = 4722904800.

The previous prime is 11020111303. The next prime is 11020111363. The reversal of 11020111312 is 21311102011.

It is a happy number.

It is a super-2 number, since 2×11020111312² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11020111292 and 11020111301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49196814 + ... + 49197037.

Almost surely, 2^11020111312 is an apocalyptic number.

It is an amenable number.

11020111312 is an abundant number, since it is smaller than the sum of its proper divisors (13381563984).

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

11020111312 is an equidigital number, since it uses as much as digits as its factorization.

11020111312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98393866 (or 98393860 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 11020111312 its reverse (21311102011), we get a palindrome (32331213323).

The spelling of 11020111312 in words is "eleven billion, twenty million, one hundred eleven thousand, three hundred twelve".