20004310215513 has 24 divisors (see below), whose sum is σ = 31135268720192. Its totient is φ = 12303440332128.

The previous prime is 20004310215497. The next prime is 20004310215517. The reversal of 20004310215513 is 31551201340002.

20004310215513 is a `hidden beast` number, since 2 + 0 + 0 + 0 + 4 + 3 + 102 + 1 + 551 + 3 = 666.

It is not a de Polignac number, because 20004310215513 - 2⁴ = 20004310215497 is a prime.

It is a super-3 number, since 3×20004310215513³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20004310215517) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47737831 + ... + 48155052.

Almost surely, 2^{20004310215513} is an apocalyptic number.

It is an amenable number.

20004310215513 is a deficient number, since it is larger than the sum of its proper divisors (11130958504679).

20004310215513 is a wasteful number, since it uses less digits than its factorization.

20004310215513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95894685 (or 95894682 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 20004310215513 its reverse (31551201340002), we get a palindrome (51555511555515).

The spelling of 20004310215513 in words is "twenty trillion, four billion, three hundred ten million, two hundred fifteen thousand, five hundred thirteen".