1020121410243 has 16 divisors (see below), whose sum is σ = 1550953819296. Its totient is φ = 590839549440.

The previous prime is 1020121410233. The next prime is 1020121410247. The reversal of 1020121410243 is 3420141210201.

It is not a de Polignac number, because 1020121410243 - 2⁸ = 1020121409987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020121410247) 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 15 ways as a sum of consecutive naturals, for example, 769321668 + ... + 769322993.

It is an arithmetic number, because the mean of its divisors is an integer number (96934613706).

Almost surely, 2^{1020121410243} is an apocalyptic number.

1020121410243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1020121410243 is a deficient number, since it is larger than the sum of its proper divisors (530832409053).

1020121410243 is a wasteful number, since it uses less digits than its factorization.

1020121410243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538644694.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1020121410243 its reverse (3420141210201), we get a palindrome (4440262620444).

The spelling of 1020121410243 in words is "one trillion, twenty billion, one hundred twenty-one million, four hundred ten thousand, two hundred forty-three".