20311141443040 has 48 divisors (see below), whose sum is σ = 54840081899232. Its totient is φ = 6963819922944.

The previous prime is 20311141443031. The next prime is 20311141443079. The reversal of 20311141443040 is 4034414111302.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9067472739 + ... + 9067474978.

It is an arithmetic number, because the mean of its divisors is an integer number (1142501706234).

Almost surely, 2^{20311141443040} is an apocalyptic number.

20311141443040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20311141443040 is an abundant number, since it is smaller than the sum of its proper divisors (34528940456192).

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

20311141443040 is a wasteful number, since it uses less digits than its factorization.

20311141443040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18134947739 (or 18134947731 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 20311141443040 its reverse (4034414111302), we get a palindrome (24345555554342).

The spelling of 20311141443040 in words is "twenty trillion, three hundred eleven billion, one hundred forty-one million, four hundred forty-three thousand, forty".