2231323320202 has 4 divisors (see below), whose sum is σ = 3346984980306. Its totient is φ = 1115661660100.

The previous prime is 2231323320181. The next prime is 2231323320209. The reversal of 2231323320202 is 2020233231322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1873911850281 + 357411469921 = 1368909^2 + 597839^2 .

It is a super-3 number, since 3×2231323320202³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2231323320209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557830830049 + ... + 557830830052.

Almost surely, 2^{2231323320202} is an apocalyptic number.

2231323320202 is a deficient number, since it is larger than the sum of its proper divisors (1115661660104).

2231323320202 is a wasteful number, since it uses less digits than its factorization.

2231323320202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115661660103.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 2231323320202 its reverse (2020233231322), we get a palindrome (4251556551524).

The spelling of 2231323320202 in words is "two trillion, two hundred thirty-one billion, three hundred twenty-three million, three hundred twenty thousand, two hundred two".