20051301215 has 32 divisors (see below), whose sum is σ = 27454242816. Its totient is φ = 13916136960.

The previous prime is 20051301199. The next prime is 20051301241. The reversal of 20051301215 is 51210315002.

It is a happy number.

It is not a de Polignac number, because 20051301215 - 2⁴ = 20051301199 is a prime.

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 in 31 ways as a sum of consecutive naturals, for example, 529442 + ... + 566048.

It is an arithmetic number, because the mean of its divisors is an integer number (857945088).

Almost surely, 2^20051301215 is an apocalyptic number.

20051301215 is a deficient number, since it is larger than the sum of its proper divisors (7402941601).

20051301215 is a wasteful number, since it uses less digits than its factorization.

20051301215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37079.

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 20051301215 its reverse (51210315002), we get a palindrome (71261616217).

The spelling of 20051301215 in words is "twenty billion, fifty-one million, three hundred one thousand, two hundred fifteen".