321420233000040 has 32 divisors (see below), whose sum is σ = 964260699000480. Its totient is φ = 85712062133312.

The previous prime is 321420233000039. The next prime is 321420233000107. The reversal of 321420233000040 is 40000332024123.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1339250970714 + ... + 1339250970953.

It is an arithmetic number, because the mean of its divisors is an integer number (30133146843765).

Almost surely, 2^{321420233000040} is an apocalyptic number.

321420233000040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

321420233000040 is an abundant number, since it is smaller than the sum of its proper divisors (642840466000440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321420233000040 is a wasteful number, since it uses less digits than its factorization.

321420233000040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2678501941681 (or 2678501941677 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 321420233000040 its reverse (40000332024123), we get a palindrome (361420565024163).

The spelling of 321420233000040 in words is "three hundred twenty-one trillion, four hundred twenty billion, two hundred thirty-three million, forty", and thus it is an aban number.