2231365532 has 72 divisors (see below), whose sum is σ = 4546940160. Its totient is φ = 950019840.

The previous prime is 2231365519. The next prime is 2231365541. The reversal of 2231365532 is 2355631322.

It is a super-3 number, since 3×2231365532³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4819133 + ... + 4819595.

Almost surely, 2^2231365532 is an apocalyptic number.

2231365532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2231365532 is an abundant number, since it is smaller than the sum of its proper divisors (2315574628).

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

2231365532 is a wasteful number, since it uses less digits than its factorization.

2231365532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891 (or 872 counting only the distinct ones).

The product of its digits is 32400, while the sum is 32.

The square root of 2231365532 is about 47237.3319737684. The cubic root of 2231365532 is about 1306.7431737389.

Adding to 2231365532 its reverse (2355631322), we get a palindrome (4586996854).

It can be divided in two parts, 2231 and 365532, that added together give a palindrome (367763).

The spelling of 2231365532 in words is "two billion, two hundred thirty-one million, three hundred sixty-five thousand, five hundred thirty-two".