1232211131 has 8 divisors (see below), whose sum is σ = 1330123680. Its totient is φ = 1137993472.

The previous prime is 1232211109. The next prime is 1232211191. The reversal of 1232211131 is 1311122321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1232211131 - 2⁶ = 1232211067 is a prime.

It is a super-2 number, since 2×1232211131² = 3036688542720598322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232211191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 923030 + ... + 924363.

It is an arithmetic number, because the mean of its divisors is an integer number (166265460).

Almost surely, 2^1232211131 is an apocalyptic number.

1232211131 is a deficient number, since it is larger than the sum of its proper divisors (97912549).

1232211131 is a wasteful number, since it uses less digits than its factorization.

1232211131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847445.

The product of its digits is 72, while the sum is 17.

The square root of 1232211131 is about 35102.8649970341. The cubic root of 1232211131 is about 1072.0829170637.

Adding to 1232211131 its reverse (1311122321), we get a palindrome (2543333452).

The spelling of 1232211131 in words is "one billion, two hundred thirty-two million, two hundred eleven thousand, one hundred thirty-one".