10145320503205 has 4 divisors (see below), whose sum is σ = 12174384603852. Its totient is φ = 8116256402560.

The previous prime is 10145320503191. The next prime is 10145320503217. The reversal of 10145320503205 is 50230502354101.

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 6241447927521 + 3903872575684 = 2498289^2 + 1975822^2 .

It is not a de Polignac number, because 10145320503205 - 2⁷ = 10145320503077 is a prime.

It is a super-2 number, since 2×10145320503205² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1014532050316 + ... + 1014532050325.

It is an arithmetic number, because the mean of its divisors is an integer number (3043596150963).

Almost surely, 2^{10145320503205} is an apocalyptic number.

It is an amenable number.

10145320503205 is a deficient number, since it is larger than the sum of its proper divisors (2029064100647).

10145320503205 is an equidigital number, since it uses as much as digits as its factorization.

10145320503205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029064100646.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 10145320503205 its reverse (50230502354101), we get a palindrome (60375822857306).

The spelling of 10145320503205 in words is "ten trillion, one hundred forty-five billion, three hundred twenty million, five hundred three thousand, two hundred five".