1211124030320 has 40 divisors (see below), whose sum is σ = 2821945235136. Its totient is φ = 483403269888.

The previous prime is 1211124030301. The next prime is 1211124030421. The reversal of 1211124030320 is 230304211121.

It is a tau number, because it is divible by the number of its divisors (40).

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 = 1211124030292 and 1211124030301.

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, 16311827 + ... + 16385906.

Almost surely, 2^{1211124030320} is an apocalyptic number.

1211124030320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1211124030320 is an abundant number, since it is smaller than the sum of its proper divisors (1610821204816).

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

1211124030320 is a wasteful number, since it uses less digits than its factorization.

1211124030320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32698209 (or 32698203 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1211124030320 its reverse (230304211121), we get a palindrome (1441428241441).

The spelling of 1211124030320 in words is "one trillion, two hundred eleven billion, one hundred twenty-four million, thirty thousand, three hundred twenty".