1003121120101 has 12 divisors (see below), whose sum is σ = 1012875685248. Its totient is φ = 993440381184.

The previous prime is 1003121120083. The next prime is 1003121120117. The reversal of 1003121120101 is 1010211213001.

It is a happy number.

It is not a de Polignac number, because 1003121120101 - 2²³ = 1003112731493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003121120201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8246146 + ... + 8366908.

It is an arithmetic number, because the mean of its divisors is an integer number (84406307104).

Almost surely, 2^{1003121120101} is an apocalyptic number.

It is an amenable number.

1003121120101 is a deficient number, since it is larger than the sum of its proper divisors (9754565147).

1003121120101 is an equidigital number, since it uses as much as digits as its factorization.

1003121120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121372 (or 121179 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1003121120101 its reverse (1010211213001), we get a palindrome (2013332333102).

The spelling of 1003121120101 in words is "one trillion, three billion, one hundred twenty-one million, one hundred twenty thousand, one hundred one".