1231004034 has 256 divisors, whose sum is σ = 3374784000. Its totient is φ = 328458240.

The previous prime is 1231004003. The next prime is 1231004069. The reversal of 1231004034 is 4304001321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1231003998 and 1231004016.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 13831462 + ... + 13831550.

It is an arithmetic number, because the mean of its divisors is an integer number (13182750).

Almost surely, 2^1231004034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1231004034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1687392000).

1231004034 is an abundant number, since it is smaller than the sum of its proper divisors (2143779966).

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

1231004034 is a wasteful number, since it uses less digits than its factorization.

1231004034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1231004034 is about 35085.6670736071. The cubic root of 1231004034 is about 1071.7327252153.

Adding to 1231004034 its reverse (4304001321), we get a palindrome (5535005355).

The spelling of 1231004034 in words is "one billion, two hundred thirty-one million, four thousand, thirty-four".