11452121120 has 48 divisors (see below), whose sum is σ = 29515243968. Its totient is φ = 4164407040.

The previous prime is 11452121117. The next prime is 11452121137. The reversal of 11452121120 is 2112125411.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 11452121092 and 11452121101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3251684 + ... + 3255203.

It is an arithmetic number, because the mean of its divisors is an integer number (614900916).

Almost surely, 2^11452121120 is an apocalyptic number.

11452121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11452121120 is an abundant number, since it is smaller than the sum of its proper divisors (18063122848).

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

11452121120 is a wasteful number, since it uses less digits than its factorization.

11452121120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6506913 (or 6506905 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 11452121120 its reverse (2112125411), we get a palindrome (13564246531).

The spelling of 11452121120 in words is "eleven billion, four hundred fifty-two million, one hundred twenty-one thousand, one hundred twenty".