1213231010 has 64 divisors (see below), whose sum is σ = 2349129600. Its totient is φ = 449541120.

The previous prime is 1213231009. The next prime is 1213231039. The reversal of 1213231010 is 101323121.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5344517 + ... + 5344743.

It is an arithmetic number, because the mean of its divisors is an integer number (36705150).

Almost surely, 2^1213231010 is an apocalyptic number.

1213231010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213231010 is a deficient number, since it is larger than the sum of its proper divisors (1135898590).

1213231010 is a wasteful number, since it uses less digits than its factorization.

1213231010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1213231010 is about 34831.4658032073. The cubic root of 1213231010 is about 1066.5498707838.

Adding to 1213231010 its reverse (101323121), we get a palindrome (1314554131).

The spelling of 1213231010 in words is "one billion, two hundred thirteen million, two hundred thirty-one thousand, ten".