20303439967 has 2 divisors, whose sum is σ = 20303439968. Its totient is φ = 20303439966.

The previous prime is 20303439943. The next prime is 20303440037. The reversal of 20303439967 is 76993430302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20303439967 - 2⁷ = 20303439839 is a prime.

It is a super-2 number, since 2×20303439967² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20303433967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10151719983 + 10151719984.

It is an arithmetic number, because the mean of its divisors is an integer number (10151719984).

Almost surely, 2^20303439967 is an apocalyptic number.

20303439967 is a deficient number, since it is larger than the sum of its proper divisors (1).

20303439967 is an equidigital number, since it uses as much as digits as its factorization.

20303439967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 734832, while the sum is 46.

The spelling of 20303439967 in words is "twenty billion, three hundred three million, four hundred thirty-nine thousand, nine hundred sixty-seven".