1020121202313 has 24 divisors (see below), whose sum is σ = 1507834991520. Its totient is φ = 664238998080.

The previous prime is 1020121202311. The next prime is 1020121202323. The reversal of 1020121202313 is 3132021210201.

1020121202313 is a `hidden beast` number, since 10 + 20 + 121 + 202 + 313 = 666.

It is not a de Polignac number, because 1020121202313 - 2¹ = 1020121202311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020121202311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18210958 + ... + 18266888.

It is an arithmetic number, because the mean of its divisors is an integer number (62826457980).

Almost surely, 2^{1020121202313} is an apocalyptic number.

It is an amenable number.

1020121202313 is a deficient number, since it is larger than the sum of its proper divisors (487713789207).

1020121202313 is a wasteful number, since it uses less digits than its factorization.

1020121202313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103109 (or 103106 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1020121202313 its reverse (3132021210201), we get a palindrome (4152142412514).

The spelling of 1020121202313 in words is "one trillion, twenty billion, one hundred twenty-one million, two hundred two thousand, three hundred thirteen".