20122110413 has 4 divisors (see below), whose sum is σ = 20185587420. Its totient is φ = 20058633408.

The previous prime is 20122110409. The next prime is 20122110431. The reversal of 20122110413 is 31401122102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12293930884 + 7828179529 = 110878^2 + 88477^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122110413 - 2² = 20122110409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20122110391 and 20122110400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122110313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31738028 + ... + 31738661.

It is an arithmetic number, because the mean of its divisors is an integer number (5046396855).

Almost surely, 2^20122110413 is an apocalyptic number.

It is an amenable number.

20122110413 is a deficient number, since it is larger than the sum of its proper divisors (63477007).

20122110413 is an equidigital number, since it uses as much as digits as its factorization.

20122110413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63477006.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20122110413 its reverse (31401122102), we get a palindrome (51523232515).

The spelling of 20122110413 in words is "twenty billion, one hundred twenty-two million, one hundred ten thousand, four hundred thirteen".