20313030 has 32 divisors (see below), whose sum is σ = 48895488. Its totient is φ = 5400800.

The previous prime is 20313001. The next prime is 20313047. The reversal of 20313030 is 3031302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20312997 and 20313015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12145 + ... + 13715.

It is an arithmetic number, because the mean of its divisors is an integer number (1527984).

Almost surely, 2^20313030 is an apocalyptic number.

20313030 is an abundant number, since it is smaller than the sum of its proper divisors (28582458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20313030 is a wasteful number, since it uses less digits than its factorization.

20313030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012.

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 20313030 is about 4506.9978921672. The cubic root of 20313030 is about 272.8505938245.

Adding to 20313030 its reverse (3031302), we get a palindrome (23344332).

The spelling of 20313030 in words is "twenty million, three hundred thirteen thousand, thirty".