1231320030004 has 6 divisors (see below), whose sum is σ = 2154810052514. Its totient is φ = 615660015000.

The previous prime is 1231320029999. The next prime is 1231320030019. The reversal of 1231320030004 is 4000300231321.

It can be written as a sum of positive squares in only one way, i.e., 1212755967504 + 18564062500 = 1101252^2 + 136250^2 .

It is a super-2 number, since 2×1231320030004² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 153915003747 + ... + 153915003754.

Almost surely, 2^{1231320030004} is an apocalyptic number.

It is an amenable number.

1231320030004 is a deficient number, since it is larger than the sum of its proper divisors (923490022510).

1231320030004 is a wasteful number, since it uses less digits than its factorization.

1231320030004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307830007505 (or 307830007503 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1231320030004 its reverse (4000300231321), we get a palindrome (5231620261325).

The spelling of 1231320030004 in words is "one trillion, two hundred thirty-one billion, three hundred twenty million, thirty thousand, four".