1303103123021 has 8 divisors (see below), whose sum is σ = 1540614529920. Its totient is φ = 1078430170608.

The previous prime is 1303103122987. The next prime is 1303103123089. The reversal of 1303103123021 is 1203213013031.

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

It is not a de Polignac number, because 1303103123021 - 2⁶ = 1303103122957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1303103122984 and 1303103123002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303103122021) 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, 3209613401 + ... + 3209613806.

It is an arithmetic number, because the mean of its divisors is an integer number (192576816240).

Almost surely, 2^{1303103123021} is an apocalyptic number.

It is an amenable number.

1303103123021 is a deficient number, since it is larger than the sum of its proper divisors (237511406899).

1303103123021 is an equidigital number, since it uses as much as digits as its factorization.

1303103123021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6419227243.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1303103123021 its reverse (1203213013031), we get a palindrome (2506316136052).

The spelling of 1303103123021 in words is "one trillion, three hundred three billion, one hundred three million, one hundred twenty-three thousand, twenty-one".