11420204012 has 18 divisors (see below), whose sum is σ = 23248272852. Its totient is φ = 4894373064.

The previous prime is 11420204009. The next prime is 11420204017. The reversal of 11420204012 is 21040202411.

It is a super-2 number, since 2×11420204012² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11420204017) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 29132978 + ... + 29133369.

It is an arithmetic number, because the mean of its divisors is an integer number (1291570714).

Almost surely, 2^11420204012 is an apocalyptic number.

It is an amenable number.

11420204012 is an abundant number, since it is smaller than the sum of its proper divisors (11828068840).

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

11420204012 is a wasteful number, since it uses less digits than its factorization.

11420204012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58266365 (or 58266356 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 11420204012 its reverse (21040202411), we get a palindrome (32460406423).

The spelling of 11420204012 in words is "eleven billion, four hundred twenty million, two hundred four thousand, twelve".