20313104 has 40 divisors (see below), whose sum is σ = 45205440. Its totient is φ = 8661888.

The previous prime is 20313089. The next prime is 20313119. The reversal of 20313104 is 40131302.

It is an interprime number because it is at equal distance from previous prime (20313089) and next prime (20313119).

It is a super-2 number, since 2×20313104² = 825244388229632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32507 + ... + 33125.

It is an arithmetic number, because the mean of its divisors is an integer number (1130136).

Almost surely, 2^20313104 is an apocalyptic number.

It is an amenable number.

20313104 is an abundant number, since it is smaller than the sum of its proper divisors (24892336).

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

20313104 is a wasteful number, since it uses less digits than its factorization.

20313104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927 (or 921 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 20313104 is about 4507.0061016156. The cubic root of 20313104 is about 272.8509251541.

Adding to 20313104 its reverse (40131302), we get a palindrome (60444406).

The spelling of 20313104 in words is "twenty million, three hundred thirteen thousand, one hundred four".