331212030 has 32 divisors (see below), whose sum is σ = 795916800. Its totient is φ = 88211232.

The previous prime is 331211989. The next prime is 331212031. The reversal of 331212030 is 30212133.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331212031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18591 + ... + 31749.

It is an arithmetic number, because the mean of its divisors is an integer number (24872400).

Almost surely, 2^331212030 is an apocalyptic number.

331212030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

331212030 is an abundant number, since it is smaller than the sum of its proper divisors (464704770).

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

331212030 is a wasteful number, since it uses less digits than its factorization.

331212030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14008.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 331212030 is about 18199.2315771848. The cubic root of 331212030 is about 691.8873136144.

Adding to 331212030 its reverse (30212133), we get a palindrome (361424163).

The spelling of 331212030 in words is "three hundred thirty-one million, two hundred twelve thousand, thirty".