20313122 has 32 divisors (see below), whose sum is σ = 32997888. Its totient is φ = 9360000.

The previous prime is 20313121. The next prime is 20313133. The reversal of 20313122 is 22131302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20313097 and 20313106.

It is not an unprimeable number, because it can be changed into a prime (20313121) 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, 154997 + ... + 155127.

It is an arithmetic number, because the mean of its divisors is an integer number (1031184).

Almost surely, 2^20313122 is an apocalyptic number.

20313122 is a deficient number, since it is larger than the sum of its proper divisors (12684766).

20313122 is a wasteful number, since it uses less digits than its factorization.

20313122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266.

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

The square root of 20313122 is about 4507.0080985061. The cubic root of 20313122 is about 272.8510057476.

Adding to 20313122 its reverse (22131302), we get a palindrome (42444424).

The spelling of 20313122 in words is "twenty million, three hundred thirteen thousand, one hundred twenty-two".