10103440521 has 8 divisors (see below), whose sum is σ = 13473166464. Its totient is φ = 6734670800.

The previous prime is 10103440507. The next prime is 10103440531. The reversal of 10103440521 is 12504430101.

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 10103440521 - 2⁷ = 10103440393 is a prime.

It is a super-2 number, since 2×10103440521² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10103440531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214026 + ... + 256931.

It is an arithmetic number, because the mean of its divisors is an integer number (1684145808).

Almost surely, 2^10103440521 is an apocalyptic number.

It is an amenable number.

10103440521 is a deficient number, since it is larger than the sum of its proper divisors (3369725943).

10103440521 is an equidigital number, since it uses as much as digits as its factorization.

10103440521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478111.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 10103440521 its reverse (12504430101), we get a palindrome (22607870622).

The spelling of 10103440521 in words is "ten billion, one hundred three million, four hundred forty thousand, five hundred twenty-one".