20223125340 has 144 divisors (see below), whose sum is σ = 62368548480. Its totient is φ = 4855714560.

The previous prime is 20223125317. The next prime is 20223125347. The reversal of 20223125340 is 4352132202.

It is a self number, because there is not a number n which added to its sum of digits gives 20223125340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20223125347) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7840171 + ... + 7842749.

It is an arithmetic number, because the mean of its divisors is an integer number (433114920).

Almost surely, 2^20223125340 is an apocalyptic number.

20223125340 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 20223125340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31184274240).

20223125340 is an abundant number, since it is smaller than the sum of its proper divisors (42145423140).

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

20223125340 is a wasteful number, since it uses less digits than its factorization.

20223125340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2820 (or 2709 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 20223125340 its reverse (4352132202), we get a palindrome (24575257542).

The spelling of 20223125340 in words is "twenty billion, two hundred twenty-three million, one hundred twenty-five thousand, three hundred forty".