1202102320421 has 16 divisors (see below), whose sum is σ = 1249002659520. Its totient is φ = 1156315954560.

The previous prime is 1202102320373. The next prime is 1202102320423. The reversal of 1202102320421 is 1240232012021.

It is a cyclic number.

It is not a de Polignac number, because 1202102320421 - 2¹⁴ = 1202102304037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1202102320393 and 1202102320402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202102320423) 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, 466736 + ... + 1619273.

It is an arithmetic number, because the mean of its divisors is an integer number (78062666220).

Almost surely, 2^{1202102320421} is an apocalyptic number.

It is an amenable number.

1202102320421 is a deficient number, since it is larger than the sum of its proper divisors (46900339099).

1202102320421 is a wasteful number, since it uses less digits than its factorization.

1202102320421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2086276.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1202102320421 its reverse (1240232012021), we get a palindrome (2442334332442).

The spelling of 1202102320421 in words is "one trillion, two hundred two billion, one hundred two million, three hundred twenty thousand, four hundred twenty-one".