1002201310123 has 12 divisors (see below), whose sum is σ = 1085478776928. Its totient is φ = 924891633120.

The previous prime is 1002201310111. The next prime is 1002201310133. The reversal of 1002201310123 is 3210131022001.

It is a de Polignac number, because none of the positive numbers 2^k-1002201310123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1002201310097 and 1002201310106.

It is not an unprimeable number, because it can be changed into a prime (1002201310133) 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, 27561 + ... + 1416037.

It is an arithmetic number, because the mean of its divisors is an integer number (90456564744).

Almost surely, 2^{1002201310123} is an apocalyptic number.

1002201310123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1002201310123 is a deficient number, since it is larger than the sum of its proper divisors (83277466805).

1002201310123 is a wasteful number, since it uses less digits than its factorization.

1002201310123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392774 (or 1392761 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1002201310123 its reverse (3210131022001), we get a palindrome (4212332332124).

The spelling of 1002201310123 in words is "one trillion, two billion, two hundred one million, three hundred ten thousand, one hundred twenty-three".