20500306273011 has 32 divisors (see below), whose sum is σ = 28778791016448. Its totient is φ = 12965084588160.

The previous prime is 20500306273003. The next prime is 20500306273021. The reversal of 20500306273011 is 11037260300502.

It is not a de Polignac number, because 20500306273011 - 2³ = 20500306273003 is a prime.

It is a super-2 number, since 2×20500306273011² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20500306273011.

It is not an unprimeable number, because it can be changed into a prime (20500306273021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6098500 + ... + 8842641.

It is an arithmetic number, because the mean of its divisors is an integer number (899337219264).

Almost surely, 2^{20500306273011} is an apocalyptic number.

20500306273011 is a deficient number, since it is larger than the sum of its proper divisors (8278484743437).

20500306273011 is a wasteful number, since it uses less digits than its factorization.

20500306273011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14941491.

The product of its (nonzero) digits is 7560, while the sum is 30.

Adding to 20500306273011 its reverse (11037260300502), we get a palindrome (31537566573513).

The spelling of 20500306273011 in words is "twenty trillion, five hundred billion, three hundred six million, two hundred seventy-three thousand, eleven".