1021230135202 has 8 divisors (see below), whose sum is σ = 1531877130396. Its totient is φ = 510604425072.

The previous prime is 1021230135193. The next prime is 1021230135217. The reversal of 1021230135202 is 2025310321201.

It can be written as a sum of positive squares in 2 ways, for example, as 807803690841 + 213426444361 = 898779^2 + 461981^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5200773 + ... + 5393560.

Almost surely, 2^{1021230135202} is an apocalyptic number.

1021230135202 is a deficient number, since it is larger than the sum of its proper divisors (510646995194).

1021230135202 is a wasteful number, since it uses less digits than its factorization.

1021230135202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10642532.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 1021230135202 its reverse (2025310321201), we get a palindrome (3046540456403).

The spelling of 1021230135202 in words is "one trillion, twenty-one billion, two hundred thirty million, one hundred thirty-five thousand, two hundred two".