20751074211 has 32 divisors (see below), whose sum is σ = 31947084288. Its totient is φ = 11735573760.

The previous prime is 20751074209. The next prime is 20751074213. The reversal of 20751074211 is 11247015702.

It is an interprime number because it is at equal distance from previous prime (20751074209) and next prime (20751074213).

It is not a de Polignac number, because 20751074211 - 2¹ = 20751074209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20751074213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2676801 + ... + 2684541.

It is an arithmetic number, because the mean of its divisors is an integer number (998346384).

Almost surely, 2^20751074211 is an apocalyptic number.

20751074211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20751074211 is a deficient number, since it is larger than the sum of its proper divisors (11196010077).

20751074211 is a wasteful number, since it uses less digits than its factorization.

20751074211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9051.

The product of its (nonzero) digits is 3920, while the sum is 30.

Adding to 20751074211 its reverse (11247015702), we get a palindrome (31998089913).

The spelling of 20751074211 in words is "twenty billion, seven hundred fifty-one million, seventy-four thousand, two hundred eleven".