1021413234243 has 16 divisors (see below), whose sum is σ = 1363575951360. Its totient is φ = 680096744256.

The previous prime is 1021413234229. The next prime is 1021413234251. The reversal of 1021413234243 is 3424323141201.

It is not a de Polignac number, because 1021413234243 - 2¹³ = 1021413226051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1021413234243.

It is not an unprimeable number, because it can be changed into a prime (1021413234223) 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, 10415746 + ... + 10513352.

It is an arithmetic number, because the mean of its divisors is an integer number (85223496960).

Almost surely, 2^{1021413234243} is an apocalyptic number.

1021413234243 is a deficient number, since it is larger than the sum of its proper divisors (342162717117).

1021413234243 is a wasteful number, since it uses less digits than its factorization.

1021413234243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101906.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 1021413234243 its reverse (3424323141201), we get a palindrome (4445736375444).

The spelling of 1021413234243 in words is "one trillion, twenty-one billion, four hundred thirteen million, two hundred thirty-four thousand, two hundred forty-three".