12311231210 has 16 divisors (see below), whose sum is σ = 22161573000. Its totient is φ = 4924190976.

The previous prime is 12311231209. The next prime is 12311231341. The reversal of 12311231210 is 1213211321.

It can be written as a sum of positive squares in 4 ways, for example, as 9838854481 + 2472376729 = 99191^2 + 49723^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213566 + ... + 265014.

Almost surely, 2^12311231210 is an apocalyptic number.

12311231210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12311231210 is a deficient number, since it is larger than the sum of its proper divisors (9850341790).

12311231210 is a wasteful number, since it uses less digits than its factorization.

12311231210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75385.

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

Adding to 12311231210 its reverse (1213211321), we get a palindrome (13524442531).

The spelling of 12311231210 in words is "twelve billion, three hundred eleven million, two hundred thirty-one thousand, two hundred ten".