11423121430220 has 24 divisors (see below), whose sum is σ = 25251110530800. Its totient is φ = 4328761804992.

The previous prime is 11423121430183. The next prime is 11423121430267. The reversal of 11423121430220 is 2203412132411.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11423121430220.

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, 15030422555 + ... + 15030423314.

It is an arithmetic number, because the mean of its divisors is an integer number (1052129605450).

Almost surely, 2^{11423121430220} is an apocalyptic number.

11423121430220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11423121430220 is an abundant number, since it is smaller than the sum of its proper divisors (13827989100580).

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

11423121430220 is a wasteful number, since it uses less digits than its factorization.

11423121430220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30060845897 (or 30060845895 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 11423121430220 its reverse (2203412132411), we get a palindrome (13626533562631).

The spelling of 11423121430220 in words is "eleven trillion, four hundred twenty-three billion, one hundred twenty-one million, four hundred thirty thousand, two hundred twenty".