20833314881 has 2 divisors, whose sum is σ = 20833314882. Its totient is φ = 20833314880.

The previous prime is 20833314869. The next prime is 20833314911. The reversal of 20833314881 is 18841333802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20789025856 + 44289025 = 144184^2 + 6655^2 .

It is a cyclic number.

It is not a de Polignac number, because 20833314881 - 2²² = 20829120577 is a prime.

It is a super-2 number, since 2×20833314881² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20833314841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10416657440 + 10416657441.

It is an arithmetic number, because the mean of its divisors is an integer number (10416657441).

Almost surely, 2^20833314881 is an apocalyptic number.

It is an amenable number.

20833314881 is a deficient number, since it is larger than the sum of its proper divisors (1).

20833314881 is an equidigital number, since it uses as much as digits as its factorization.

20833314881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 20833314881 in words is "twenty billion, eight hundred thirty-three million, three hundred fourteen thousand, eight hundred eighty-one".