103445253440 has 28 divisors (see below), whose sum is σ = 246329010516. Its totient is φ = 41378101248.

The previous prime is 103445253403. The next prime is 103445253449. The reversal of 103445253440 is 44352544301.

It can be written as a sum of positive squares in 2 ways, for example, as 13550822464 + 89894430976 = 116408^2 + 299824^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 103445253440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103445253449) 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, 161632889 + ... + 161633528.

Almost surely, 2^103445253440 is an apocalyptic number.

103445253440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103445253440 is an abundant number, since it is smaller than the sum of its proper divisors (142883757076).

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

103445253440 is an equidigital number, since it uses as much as digits as its factorization.

103445253440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323266434 (or 323266424 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 103445253440 its reverse (44352544301), we get a palindrome (147797797741).

The spelling of 103445253440 in words is "one hundred three billion, four hundred forty-five million, two hundred fifty-three thousand, four hundred forty".