42653983321 has 2 divisors, whose sum is σ = 42653983322. Its totient is φ = 42653983320.

The previous prime is 42653983313. The next prime is 42653983381. The reversal of 42653983321 is 12338935624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28979955225 + 13674028096 = 170235^2 + 116936^2 .

It is a cyclic number.

It is not a de Polignac number, because 42653983321 - 2³ = 42653983313 is a prime.

It is not a weakly prime, because it can be changed into another prime (42653983381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21326991660 + 21326991661.

It is an arithmetic number, because the mean of its divisors is an integer number (21326991661).

Almost surely, 2^42653983321 is an apocalyptic number.

It is an amenable number.

42653983321 is a deficient number, since it is larger than the sum of its proper divisors (1).

42653983321 is an equidigital number, since it uses as much as digits as its factorization.

42653983321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 46.

The spelling of 42653983321 in words is "forty-two billion, six hundred fifty-three million, nine hundred eighty-three thousand, three hundred twenty-one".