1231004411 has 12 divisors (see below), whose sum is σ = 1542138192. Its totient is φ = 973981008.

The previous prime is 1231004381. The next prime is 1231004477. The reversal of 1231004411 is 1144001321.

It is a happy number.

It is not a de Polignac number, because 1231004411 - 2²⁶ = 1163895547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1231004411.

It is not an unprimeable number, because it can be changed into a prime (1231004111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 965615 + ... + 966888.

It is an arithmetic number, because the mean of its divisors is an integer number (128511516).

Almost surely, 2^1231004411 is an apocalyptic number.

1231004411 is a deficient number, since it is larger than the sum of its proper divisors (311133781).

1231004411 is a wasteful number, since it uses less digits than its factorization.

1231004411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932530 (or 1932523 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1231004411 is about 35085.6724461710. The cubic root of 1231004411 is about 1071.7328346228.

Adding to 1231004411 its reverse (1144001321), we get a palindrome (2375005732).

The spelling of 1231004411 in words is "one billion, two hundred thirty-one million, four thousand, four hundred eleven".