20411313321 has 16 divisors (see below), whose sum is σ = 31105193984. Its totient is φ = 11662767504.

The previous prime is 20411313301. The next prime is 20411313371. The reversal of 20411313321 is 12331311402.

It is not a de Polignac number, because 20411313321 - 2²² = 20407119017 is a prime.

It is a super-2 number, since 2×20411313321² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20411313301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 375366 + ... + 426288.

It is an arithmetic number, because the mean of its divisors is an integer number (1944074624).

Almost surely, 2^20411313321 is an apocalyptic number.

20411313321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20411313321 is a deficient number, since it is larger than the sum of its proper divisors (10693880663).

20411313321 is a wasteful number, since it uses less digits than its factorization.

20411313321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70020.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20411313321 its reverse (12331311402), we get a palindrome (32742624723).

The spelling of 20411313321 in words is "twenty billion, four hundred eleven million, three hundred thirteen thousand, three hundred twenty-one".