20312344004 has 24 divisors (see below), whose sum is σ = 36337421568. Its totient is φ = 9930634560.

The previous prime is 20312344001. The next prime is 20312344021. The reversal of 20312344004 is 40044321302.

It is not an unprimeable number, because it can be changed into a prime (20312344001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149024 + ... + 250664.

It is an arithmetic number, because the mean of its divisors is an integer number (1514059232).

Almost surely, 2^20312344004 is an apocalyptic number.

It is an amenable number.

20312344004 is a deficient number, since it is larger than the sum of its proper divisors (16025077564).

20312344004 is a wasteful number, since it uses less digits than its factorization.

20312344004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102755 (or 102753 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20312344004 its reverse (40044321302), we get a palindrome (60356665306).

The spelling of 20312344004 in words is "twenty billion, three hundred twelve million, three hundred forty-four thousand, four".