2231236473 has 4 divisors (see below), whose sum is σ = 2974981968. Its totient is φ = 1487490980.

The previous prime is 2231236433. The next prime is 2231236487. The reversal of 2231236473 is 3746321322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2231236473 - 2¹⁰ = 2231235449 is a prime.

It is a super-3 number, since 3×2231236473³ (a number of 29 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2231236433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371872743 + ... + 371872748.

It is an arithmetic number, because the mean of its divisors is an integer number (743745492).

Almost surely, 2^2231236473 is an apocalyptic number.

It is an amenable number.

2231236473 is a deficient number, since it is larger than the sum of its proper divisors (743745495).

2231236473 is an equidigital number, since it uses as much as digits as its factorization.

2231236473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743745494.

The product of its digits is 36288, while the sum is 33.

The square root of 2231236473 is about 47235.9658840592. The cubic root of 2231236473 is about 1306.7179798660.

Adding to 2231236473 its reverse (3746321322), we get a palindrome (5977557795).

It can be divided in two parts, 22312 and 36473, that added together give a palindrome (58785).

The spelling of 2231236473 in words is "two billion, two hundred thirty-one million, two hundred thirty-six thousand, four hundred seventy-three".