1001303003121 has 16 divisors (see below), whose sum is σ = 1405361390400. Its totient is φ = 632391167808.

The previous prime is 1001303003087. The next prime is 1001303003137. The reversal of 1001303003121 is 1213003031001.

It is not a de Polignac number, because 1001303003121 - 2¹⁰ = 1001303002097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1001303003121.

It is not an unprimeable number, because it can be changed into a prime (1001303003521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4503255 + ... + 4720371.

It is an arithmetic number, because the mean of its divisors is an integer number (87835086900).

Almost surely, 2^{1001303003121} is an apocalyptic number.

It is an amenable number.

1001303003121 is a deficient number, since it is larger than the sum of its proper divisors (404058387279).

1001303003121 is a wasteful number, since it uses less digits than its factorization.

1001303003121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298048.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 1001303003121 its reverse (1213003031001), we get a palindrome (2214306034122).

The spelling of 1001303003121 in words is "one trillion, one billion, three hundred three million, three thousand, one hundred twenty-one".