1231214372 has 12 divisors (see below), whose sum is σ = 2228922780. Its totient is φ = 594379296.

The previous prime is 1231214363. The next prime is 1231214389. The reversal of 1231214372 is 2734121321.

It can be written as a sum of positive squares in 2 ways, for example, as 474194176 + 757020196 = 21776^2 + 27514^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5306843 + ... + 5307074.

It is an arithmetic number, because the mean of its divisors is an integer number (185743565).

Almost surely, 2^1231214372 is an apocalyptic number.

It is an amenable number.

1231214372 is a deficient number, since it is larger than the sum of its proper divisors (997708408).

1231214372 is a wasteful number, since it uses less digits than its factorization.

1231214372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10613950 (or 10613948 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 1231214372 is about 35088.6644373935. The cubic root of 1231214372 is about 1071.7937630006.

Adding to 1231214372 its reverse (2734121321), we get a palindrome (3965335693).

The spelling of 1231214372 in words is "one billion, two hundred thirty-one million, two hundred fourteen thousand, three hundred seventy-two".