320135421224 has 64 divisors (see below), whose sum is σ = 653787720000. Its totient is φ = 146379598848.

The previous prime is 320135421191. The next prime is 320135421241. The reversal of 320135421224 is 422124531023.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35334407 + ... + 35343465.

It is an arithmetic number, because the mean of its divisors is an integer number (10215433125).

Almost surely, 2^320135421224 is an apocalyptic number.

It is an amenable number.

320135421224 is an abundant number, since it is smaller than the sum of its proper divisors (333652298776).

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

320135421224 is a wasteful number, since it uses less digits than its factorization.

320135421224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17130 (or 17126 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 320135421224 its reverse (422124531023), we get a palindrome (742259952247).

The spelling of 320135421224 in words is "three hundred twenty billion, one hundred thirty-five million, four hundred twenty-one thousand, two hundred twenty-four".