11921350645060 has 24 divisors (see below), whose sum is σ = 25377779321496. Its totient is φ = 4703217788160.

The previous prime is 11921350645033. The next prime is 11921350645063. The reversal of 11921350645060 is 6054605312911.

It can be written as a sum of positive squares in 4 ways, for example, as 1822073424964 + 10099277220096 = 1349842^2 + 3177936^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11921350644998 and 11921350645016.

It is not an unprimeable number, because it can be changed into a prime (11921350645063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4082652871 + ... + 4082655790.

It is an arithmetic number, because the mean of its divisors is an integer number (1057407471729).

Almost surely, 2^{11921350645060} is an apocalyptic number.

11921350645060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11921350645060 is an abundant number, since it is smaller than the sum of its proper divisors (13456428676436).

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

11921350645060 is a wasteful number, since it uses less digits than its factorization.

11921350645060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8165308743 (or 8165308741 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 43.

Adding to 11921350645060 its reverse (6054605312911), we get a palindrome (17975955957971).

The spelling of 11921350645060 in words is "eleven trillion, nine hundred twenty-one billion, three hundred fifty million, six hundred forty-five thousand, sixty".