11231301220 has 48 divisors (see below), whose sum is σ = 23738980608. Its totient is φ = 4463424000.

The previous prime is 11231301203. The next prime is 11231301239. The reversal of 11231301220 is 2210313211.

It is a super-2 number, since 2×11231301220² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11231301194 and 11231301203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2171077 + ... + 2176243.

It is an arithmetic number, because the mean of its divisors is an integer number (494562096).

Almost surely, 2^11231301220 is an apocalyptic number.

11231301220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11231301220 is an abundant number, since it is smaller than the sum of its proper divisors (12507679388).

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

11231301220 is a wasteful number, since it uses less digits than its factorization.

11231301220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5860 (or 5858 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11231301220 its reverse (2210313211), we get a palindrome (13441614431).

The spelling of 11231301220 in words is "eleven billion, two hundred thirty-one million, three hundred one thousand, two hundred twenty".