331320030 has 16 divisors (see below), whose sum is σ = 795168144. Its totient is φ = 88352000.

The previous prime is 331320029. The next prime is 331320047. The reversal of 331320030 is 30023133.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 331319991 and 331320009.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5521971 + ... + 5522030.

It is an arithmetic number, because the mean of its divisors is an integer number (49698009).

Almost surely, 2^331320030 is an apocalyptic number.

331320030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

331320030 is an abundant number, since it is smaller than the sum of its proper divisors (463848114).

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

331320030 is a wasteful number, since it uses less digits than its factorization.

331320030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11044011.

The product of its (nonzero) digits is 162, while the sum is 15.

The square root of 331320030 is about 18202.1984935886. The cubic root of 331320030 is about 691.9625078532.

Adding to 331320030 its reverse (30023133), we get a palindrome (361343163).

The spelling of 331320030 in words is "three hundred thirty-one million, three hundred twenty thousand, thirty".