20313029 has 16 divisors (see below), whose sum is σ = 23224320. Its totient is φ = 17598000.

The previous prime is 20313001. The next prime is 20313047. The reversal of 20313029 is 92031302.

It is a cyclic number.

It is not a de Polignac number, because 20313029 - 2¹² = 20308933 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20313029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313089) 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, 23792 + ... + 24630.

It is an arithmetic number, because the mean of its divisors is an integer number (1451520).

Almost surely, 2^20313029 is an apocalyptic number.

It is an amenable number.

20313029 is a deficient number, since it is larger than the sum of its proper divisors (2911291).

20313029 is a wasteful number, since it uses less digits than its factorization.

20313029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 20313029 is about 4506.9977812287. The cubic root of 20313029 is about 272.8505893471.

Adding to 20313029 its sum of digits (20), we get a square (20313049 = 4507²).

The spelling of 20313029 in words is "twenty million, three hundred thirteen thousand, twenty-nine".