1232123210 has 32 divisors (see below), whose sum is σ = 2409868800. Its totient is φ = 451846080.

The previous prime is 1232123173. The next prime is 1232123219. The reversal of 1232123210 is 123212321.

1232123210 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1232123219) 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, 98705 + ... + 110484.

It is an arithmetic number, because the mean of its divisors is an integer number (75308400).

Almost surely, 2^1232123210 is an apocalyptic number.

1232123210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1232123210 is a deficient number, since it is larger than the sum of its proper divisors (1177745590).

1232123210 is a wasteful number, since it uses less digits than its factorization.

1232123210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209246.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1232123210 is about 35101.6126410169. The cubic root of 1232123210 is about 1072.0574179584.

Adding to 1232123210 its reverse (123212321), we get a palindrome (1355335531).

The spelling of 1232123210 in words is "one billion, two hundred thirty-two million, one hundred twenty-three thousand, two hundred ten".