20306323929 has 16 divisors (see below), whose sum is σ = 28564473600. Its totient is φ = 12796080336.

The previous prime is 20306323907. The next prime is 20306323937. The reversal of 20306323929 is 92932360302.

It is not a de Polignac number, because 20306323929 - 2⁷ = 20306323801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20306323729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376839 + ... + 427340.

It is an arithmetic number, because the mean of its divisors is an integer number (1785279600).

Almost surely, 2^20306323929 is an apocalyptic number.

It is an amenable number.

20306323929 is a deficient number, since it is larger than the sum of its proper divisors (8258149671).

20306323929 is a wasteful number, since it uses less digits than its factorization.

20306323929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804644.

The product of its (nonzero) digits is 104976, while the sum is 39.

The spelling of 20306323929 in words is "twenty billion, three hundred six million, three hundred twenty-three thousand, nine hundred twenty-nine".