30321145320 has 32 divisors (see below), whose sum is σ = 90963436320. Its totient is φ = 8085638720.

The previous prime is 30321145313. The next prime is 30321145331. The reversal of 30321145320 is 2354112303.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126337986 + ... + 126338225.

It is an arithmetic number, because the mean of its divisors is an integer number (2842607385).

Almost surely, 2^30321145320 is an apocalyptic number.

30321145320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30321145320 is an abundant number, since it is smaller than the sum of its proper divisors (60642291000).

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

30321145320 is a wasteful number, since it uses less digits than its factorization.

30321145320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252676225 (or 252676221 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 30321145320 its reverse (2354112303), we get a palindrome (32675257623).

The spelling of 30321145320 in words is "thirty billion, three hundred twenty-one million, one hundred forty-five thousand, three hundred twenty".