10203620225540 has 144 divisors (see below), whose sum is σ = 26032388788224. Its totient is φ = 3343364640000.

The previous prime is 10203620225521. The next prime is 10203620225551. The reversal of 10203620225540 is 4552202630201.

It is a super-2 number, since 2×10203620225540² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10203620225497 and 10203620225506.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 25746890 + ... + 26140190.

It is an arithmetic number, because the mean of its divisors is an integer number (180780477696).

Almost surely, 2^{10203620225540} is an apocalyptic number.

10203620225540 is a gapful number since it is divisible by the number (10) 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 10203620225540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13016194394112).

10203620225540 is an abundant number, since it is smaller than the sum of its proper divisors (15828768562684).

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

10203620225540 is a wasteful number, since it uses less digits than its factorization.

10203620225540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394498 (or 394489 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 10203620225540 its reverse (4552202630201), we get a palindrome (14755822855741).

The spelling of 10203620225540 in words is "ten trillion, two hundred three billion, six hundred twenty million, two hundred twenty-five thousand, five hundred forty".