10103120321 has 24 divisors (see below), whose sum is σ = 11931696000. Its totient is φ = 8528423904.

The previous prime is 10103120243. The next prime is 10103120353. The reversal of 10103120321 is 12302130101.

It is not a de Polignac number, because 10103120321 - 2¹⁰ = 10103119297 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10103120296 and 10103120305.

It is not an unprimeable number, because it can be changed into a prime (10103320321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1618835 + ... + 1625063.

It is an arithmetic number, because the mean of its divisors is an integer number (497154000).

Almost surely, 2^10103120321 is an apocalyptic number.

It is an amenable number.

10103120321 is a deficient number, since it is larger than the sum of its proper divisors (1828575679).

10103120321 is an equidigital number, since it uses as much as digits as its factorization.

10103120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6741 (or 6734 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 10103120321 its reverse (12302130101), we get a palindrome (22405250422).

The spelling of 10103120321 in words is "ten billion, one hundred three million, one hundred twenty thousand, three hundred twenty-one".