11452015202120 has 128 divisors (see below), whose sum is σ = 26933712848640. Its totient is φ = 4374090040320.

The previous prime is 11452015202107. The next prime is 11452015202153. The reversal of 11452015202120 is 2120251025411.

It is a happy number.

It is a super-2 number, since 2×11452015202120² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11452015202120.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1914729530 + ... + 1914735510.

It is an arithmetic number, because the mean of its divisors is an integer number (210419631630).

Almost surely, 2^{11452015202120} is an apocalyptic number.

11452015202120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11452015202120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13466856424320).

11452015202120 is an abundant number, since it is smaller than the sum of its proper divisors (15481697646520).

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

11452015202120 is a wasteful number, since it uses less digits than its factorization.

11452015202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9255 (or 9251 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 11452015202120 its reverse (2120251025411), we get a palindrome (13572266227531).

The spelling of 11452015202120 in words is "eleven trillion, four hundred fifty-two billion, fifteen million, two hundred two thousand, one hundred twenty".