1002421369 has 2 divisors, whose sum is σ = 1002421370. Its totient is φ = 1002421368.

The previous prime is 1002421367. The next prime is 1002421379. The reversal of 1002421369 is 9631242001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 966277225 + 36144144 = 31085^2 + 6012^2 .

It is an emirp because it is prime and its reverse (9631242001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1002421369 - 2¹ = 1002421367 is a prime.

It is a super-2 number, since 2×1002421369² = 2009697202055668322, which contains 22 as substring.

Together with 1002421367, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1002421367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501210684 + 501210685.

It is an arithmetic number, because the mean of its divisors is an integer number (501210685).

Almost surely, 2^1002421369 is an apocalyptic number.

It is an amenable number.

1002421369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002421369 is an equidigital number, since it uses as much as digits as its factorization.

1002421369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1002421369 is about 31661.0386595260. The cubic root of 1002421369 is about 1000.8064724274.

The spelling of 1002421369 in words is "one billion, two million, four hundred twenty-one thousand, three hundred sixty-nine".