20410121312 has 144 divisors (see below), whose sum is σ = 48053440512. Its totient is φ = 8503891200.

The previous prime is 20410121311. The next prime is 20410121339. The reversal of 20410121312 is 21312101402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20410121311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17731937 + ... + 17733087.

It is an arithmetic number, because the mean of its divisors is an integer number (333704448).

Almost surely, 2^20410121312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20410121312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24026720256).

20410121312 is an abundant number, since it is smaller than the sum of its proper divisors (27643319200).

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

20410121312 is a wasteful number, since it uses less digits than its factorization.

20410121312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481 (or 1466 counting only the distinct ones).

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

Adding to 20410121312 its reverse (21312101402), we get a palindrome (41722222714).

The spelling of 20410121312 in words is "twenty billion, four hundred ten million, one hundred twenty-one thousand, three hundred twelve".