1231113004 has 24 divisors (see below), whose sum is σ = 2488561488. Its totient is φ = 526679040.

The previous prime is 1231112977. The next prime is 1231113061. The reversal of 1231113004 is 4003111321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 822189 + ... + 823684.

It is an arithmetic number, because the mean of its divisors is an integer number (103690062).

Almost surely, 2^1231113004 is an apocalyptic number.

It is an amenable number.

1231113004 is an abundant number, since it is smaller than the sum of its proper divisors (1257448484).

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

1231113004 is a wasteful number, since it uses less digits than its factorization.

1231113004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645905 (or 1645903 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1231113004 is about 35087.2199525696. The cubic root of 1231113004 is about 1071.7643479845.

Adding to 1231113004 its reverse (4003111321), we get a palindrome (5234224325).

The spelling of 1231113004 in words is "one billion, two hundred thirty-one million, one hundred thirteen thousand, four".