20231475221140 has 96 divisors (see below), whose sum is σ = 44622688803840. Its totient is φ = 7695538099200.

The previous prime is 20231475221131. The next prime is 20231475221141. The reversal of 20231475221140 is 4112257413202.

It is a junction number, because it is equal to n+sod(n) for n = 20231475221096 and 20231475221105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231475221141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11344075 + ... + 13005805.

It is an arithmetic number, because the mean of its divisors is an integer number (464819675040).

Almost surely, 2^{20231475221140} is an apocalyptic number.

20231475221140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20231475221140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22311344401920).

20231475221140 is an abundant number, since it is smaller than the sum of its proper divisors (24391213582700).

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

20231475221140 is a wasteful number, since it uses less digits than its factorization.

20231475221140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662113 (or 1662111 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The spelling of 20231475221140 in words is "twenty trillion, two hundred thirty-one billion, four hundred seventy-five million, two hundred twenty-one thousand, one hundred forty".