11231420 has 24 divisors (see below), whose sum is σ = 23650704. Its totient is φ = 4480256.

The previous prime is 11231399. The next prime is 11231431. The reversal of 11231420 is 2413211.

11231420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11231420² = 252289590432800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11231395 and 11231404.

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, 11387 + ... + 12333.

It is an arithmetic number, because the mean of its divisors is an integer number (985446).

Almost surely, 2^11231420 is an apocalyptic number.

11231420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11231420 is an abundant number, since it is smaller than the sum of its proper divisors (12419284).

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

11231420 is a wasteful number, since it uses less digits than its factorization.

11231420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549 (or 1547 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 11231420 is about 3351.3310788402. The cubic root of 11231420 is about 223.9468145413.

Adding to 11231420 its reverse (2413211), we get a palindrome (13644631).

The spelling of 11231420 in words is "eleven million, two hundred thirty-one thousand, four hundred twenty".