20312640241140 has 48 divisors (see below), whose sum is σ = 61250422883328. Its totient is φ = 5000034520704.

The previous prime is 20312640241129. The next prime is 20312640241219. The reversal of 20312640241140 is 4114204621302.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 20312640241098 and 20312640241107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13020922452 + ... + 13020924011.

It is an arithmetic number, because the mean of its divisors is an integer number (1276050476736).

Almost surely, 2^{20312640241140} is an apocalyptic number.

20312640241140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20312640241140 is an abundant number, since it is smaller than the sum of its proper divisors (40937782642188).

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

20312640241140 is a wasteful number, since it uses less digits than its factorization.

20312640241140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26041846488 (or 26041846486 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 20312640241140 its reverse (4114204621302), we get a palindrome (24426844862442).

The spelling of 20312640241140 in words is "twenty trillion, three hundred twelve billion, six hundred forty million, two hundred forty-one thousand, one hundred forty".