12131012234 has 32 divisors (see below), whose sum is σ = 20056425984. Its totient is φ = 5457257280.

The previous prime is 12131012207. The next prime is 12131012237. The reversal of 12131012234 is 43221013121.

It is a super-2 number, since 2×12131012234² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12131012237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 841592 + ... + 855884.

It is an arithmetic number, because the mean of its divisors is an integer number (626763312).

Almost surely, 2^12131012234 is an apocalyptic number.

12131012234 is a deficient number, since it is larger than the sum of its proper divisors (7925413750).

12131012234 is a wasteful number, since it uses less digits than its factorization.

12131012234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14702.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12131012234 its reverse (43221013121), we get a palindrome (55352025355).

The spelling of 12131012234 in words is "twelve billion, one hundred thirty-one million, twelve thousand, two hundred thirty-four".