20001405013 has 8 divisors (see below), whose sum is σ = 21262569120. Its totient is φ = 18761086800.

The previous prime is 20001404999. The next prime is 20001405031. The reversal of 20001405013 is 31050410002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20001405013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001405713) 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, 5209495 + ... + 5213332.

It is an arithmetic number, because the mean of its divisors is an integer number (2657821140).

Almost surely, 2^20001405013 is an apocalyptic number.

It is an amenable number.

20001405013 is a deficient number, since it is larger than the sum of its proper divisors (1261164107).

20001405013 is a wasteful number, since it uses less digits than its factorization.

20001405013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10422947.

The product of its (nonzero) digits is 120, while the sum is 16.

Adding to 20001405013 its reverse (31050410002), we get a palindrome (51051815015).

The spelling of 20001405013 in words is "twenty billion, one million, four hundred five thousand, thirteen".