1231210434 has 8 divisors (see below), whose sum is σ = 2462420880. Its totient is φ = 410403476.

The previous prime is 1231210433. The next prime is 1231210441. The reversal of 1231210434 is 4340121321.

It is a sphenic number, since it is the product of 3 distinct primes.

1231210434 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1231210434.

It is not an unprimeable number, because it can be changed into a prime (1231210433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102600864 + ... + 102600875.

It is an arithmetic number, because the mean of its divisors is an integer number (307802610).

Almost surely, 2^1231210434 is an apocalyptic number.

1231210434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1231210434 is a wasteful number, since it uses less digits than its factorization.

1231210434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205201744.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1231210434 is about 35088.6083223601. The cubic root of 1231210434 is about 1071.7926203000.

Adding to 1231210434 its reverse (4340121321), we get a palindrome (5571331755).

The spelling of 1231210434 in words is "one billion, two hundred thirty-one million, two hundred ten thousand, four hundred thirty-four".