11020121312 has 48 divisors (see below), whose sum is σ = 21934971072. Its totient is φ = 5449459200.

The previous prime is 11020121309. The next prime is 11020121323. The reversal of 11020121312 is 21312102011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4804838 + ... + 4807130.

It is an arithmetic number, because the mean of its divisors is an integer number (456978564).

Almost surely, 2^11020121312 is an apocalyptic number.

It is an amenable number.

11020121312 is a deficient number, since it is larger than the sum of its proper divisors (10914849760).

11020121312 is a wasteful number, since it uses less digits than its factorization.

11020121312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3891 (or 3883 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11020121312 its reverse (21312102011), we get a palindrome (32332223323).

The spelling of 11020121312 in words is "eleven billion, twenty million, one hundred twenty-one thousand, three hundred twelve".