1018322421 has 16 divisors (see below), whose sum is σ = 1367055360. Its totient is φ = 674247680.

The previous prime is 1018322419. The next prime is 1018322429. The reversal of 1018322421 is 1242238101.

It is a cyclic number.

It is not a de Polignac number, because 1018322421 - 2¹ = 1018322419 is a prime.

It is a super-2 number, since 2×1018322421² = 2073961106222602482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1018322391 and 1018322400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1018322429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531361 + ... + 533273.

It is an arithmetic number, because the mean of its divisors is an integer number (85440960).

Almost surely, 2^1018322421 is an apocalyptic number.

It is an amenable number.

1018322421 is a deficient number, since it is larger than the sum of its proper divisors (348732939).

1018322421 is a wasteful number, since it uses less digits than its factorization.

1018322421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 1018322421 is about 31911.1645196474. The cubic root of 1018322421 is about 1006.0705475494.

It can be divided in two parts, 10 and 18322421, that added together give a triangular number (18322431 = T₆₀₅₃).

The spelling of 1018322421 in words is "one billion, eighteen million, three hundred twenty-two thousand, four hundred twenty-one".