20972016311 has 8 divisors (see below), whose sum is σ = 21486673344. Its totient is φ = 20460211200.

The previous prime is 20972016293. The next prime is 20972016343. The reversal of 20972016311 is 11361027902.

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

It is a cyclic number.

It is not a de Polignac number, because 20972016311 - 2²⁶ = 20904907447 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 (20972016211) 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 7 ways as a sum of consecutive naturals, for example, 698090 + ... + 727511.

It is an arithmetic number, because the mean of its divisors is an integer number (2685834168).

Almost surely, 2^20972016311 is an apocalyptic number.

20972016311 is a deficient number, since it is larger than the sum of its proper divisors (514657033).

20972016311 is a wasteful number, since it uses less digits than its factorization.

20972016311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425961.

The product of its (nonzero) digits is 4536, while the sum is 32.

The spelling of 20972016311 in words is "twenty billion, nine hundred seventy-two million, sixteen thousand, three hundred eleven".