20005112321037 has 48 divisors (see below), whose sum is σ = 30581915195520. Its totient is φ = 12576114625536.

The previous prime is 20005112321027. The next prime is 20005112321041. The reversal of 20005112321037 is 73012321150002.

20005112321037 is a `hidden beast` number, since 20 + 0 + 0 + 511 + 23 + 2 + 103 + 7 = 666.

It is not a de Polignac number, because 20005112321037 - 2¹⁹ = 20005111796749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20005112321037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20005112321027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4597458 + ... + 7819644.

It is an arithmetic number, because the mean of its divisors is an integer number (637123233240).

Almost surely, 2^{20005112321037} is an apocalyptic number.

It is an amenable number.

20005112321037 is a deficient number, since it is larger than the sum of its proper divisors (10576802874483).

20005112321037 is a wasteful number, since it uses less digits than its factorization.

20005112321037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3222642 (or 3222639 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

Adding to 20005112321037 its reverse (73012321150002), we get a palindrome (93017433471039).

The spelling of 20005112321037 in words is "twenty trillion, five billion, one hundred twelve million, three hundred twenty-one thousand, thirty-seven".