10203620225501 has 4 divisors (see below), whose sum is σ = 10207216851612. Its totient is φ = 10200023599392.

The previous prime is 10203620225489. The next prime is 10203620225521. The reversal of 10203620225501 is 10552202630201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1614998722276 + 8588621503225 = 1270826^2 + 2930635^2 .

It is a cyclic number.

It is not a de Polignac number, because 10203620225501 - 2¹⁴ = 10203620209117 is a prime.

It is a super-2 number, since 2×10203620225501² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10203620225521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1798308800 + ... + 1798314473.

It is an arithmetic number, because the mean of its divisors is an integer number (2551804212903).

Almost surely, 2^{10203620225501} is an apocalyptic number.

It is an amenable number.

10203620225501 is a deficient number, since it is larger than the sum of its proper divisors (3596626111).

10203620225501 is an equidigital number, since it uses as much as digits as its factorization.

10203620225501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3596626110.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 10203620225501 its reverse (10552202630201), we get a palindrome (20755822855702).

The spelling of 10203620225501 in words is "ten trillion, two hundred three billion, six hundred twenty million, two hundred twenty-five thousand, five hundred one".