420102321 has 8 divisors (see below), whose sum is σ = 560478720. Its totient is φ = 279897072.

The previous prime is 420102307. The next prime is 420102377. The reversal of 420102321 is 123201024.

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

It is not a de Polignac number, because 420102321 - 2¹⁴ = 420085937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420102321.

It is not an unprimeable number, because it can be changed into a prime (420102391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36945 + ... + 46958.

It is an arithmetic number, because the mean of its divisors is an integer number (70059840).

Almost surely, 2^420102321 is an apocalyptic number.

It is an amenable number.

420102321 is a deficient number, since it is larger than the sum of its proper divisors (140376399).

420102321 is a wasteful number, since it uses less digits than its factorization.

420102321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85575.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 420102321 is about 20496.3977566791. The cubic root of 420102321 is about 748.9480487769.

Adding to 420102321 its reverse (123201024), we get a palindrome (543303345).

The spelling of 420102321 in words is "four hundred twenty million, one hundred two thousand, three hundred twenty-one".