1231330004 has 6 divisors (see below), whose sum is σ = 2154827514. Its totient is φ = 615665000.

The previous prime is 1231329977. The next prime is 1231330007. The reversal of 1231330004 is 4000331321.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1231308100 + 21904 = 35090^2 + 148^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231330007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153916247 + ... + 153916254.

It is an arithmetic number, because the mean of its divisors is an integer number (359137919).

Almost surely, 2^1231330004 is an apocalyptic number.

It is an amenable number.

1231330004 is a deficient number, since it is larger than the sum of its proper divisors (923497510).

1231330004 is a wasteful number, since it uses less digits than its factorization.

1231330004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307832505 (or 307832503 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1231330004 is about 35090.3121103247. The cubic root of 1231330004 is about 1071.8273151801.

Adding to 1231330004 its reverse (4000331321), we get a palindrome (5231661325).

The spelling of 1231330004 in words is "one billion, two hundred thirty-one million, three hundred thirty thousand, four".