11020320306512 has 80 divisors (see below), whose sum is σ = 23479599542784. Its totient is φ = 4969251504000.

The previous prime is 11020320306497. The next prime is 11020320306563. The reversal of 11020320306512 is 21560302302011.

It is a happy number.

It is a super-2 number, since 2×11020320306512² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10917437 + ... + 11884067.

Almost surely, 2^{11020320306512} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11020320306512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11739799771392).

11020320306512 is an abundant number, since it is smaller than the sum of its proper divisors (12459279236272).

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

11020320306512 is a wasteful number, since it uses less digits than its factorization.

11020320306512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967168 (or 967162 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 11020320306512 its reverse (21560302302011), we get a palindrome (32580622608523).

The spelling of 11020320306512 in words is "eleven trillion, twenty billion, three hundred twenty million, three hundred six thousand, five hundred twelve".