1231210230 has 32 divisors (see below), whose sum is σ = 3004992000. Its totient is φ = 322757472.

The previous prime is 1231210163. The next prime is 1231210237. The reversal of 1231210230 is 320121321.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231210237) 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, 346030 + ... + 349569.

It is an arithmetic number, because the mean of its divisors is an integer number (93906000).

Almost surely, 2^1231210230 is an apocalyptic number.

1231210230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231210230 is an abundant number, since it is smaller than the sum of its proper divisors (1773781770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231210230 is a wasteful number, since it uses less digits than its factorization.

1231210230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695668.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1231210230 is about 35088.6054154337. The cubic root of 1231210230 is about 1071.7925611047.

Adding to 1231210230 its reverse (320121321), we get a palindrome (1551331551).

The spelling of 1231210230 in words is "one billion, two hundred thirty-one million, two hundred ten thousand, two hundred thirty".