10503531305 has 8 divisors (see below), whose sum is σ = 12605057352. Its totient is φ = 8402278528.

The previous prime is 10503531293. The next prime is 10503531319. The reversal of 10503531305 is 50313530501.

It can be written as a sum of positive squares in 4 ways, for example, as 34762816 + 10468768489 = 5896^2 + 102317^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10503531305 - 2⁴ = 10503531289 is a prime.

It is a super-2 number, since 2×10503531305² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28799 + ... + 147771.

It is an arithmetic number, because the mean of its divisors is an integer number (1575632169).

Almost surely, 2^10503531305 is an apocalyptic number.

It is an amenable number.

10503531305 is a deficient number, since it is larger than the sum of its proper divisors (2101526047).

10503531305 is a wasteful number, since it uses less digits than its factorization.

10503531305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136635.

The product of its (nonzero) digits is 3375, while the sum is 26.

The spelling of 10503531305 in words is "ten billion, five hundred three million, five hundred thirty-one thousand, three hundred five".