30321123240 has 32 divisors (see below), whose sum is σ = 90963370080. Its totient is φ = 8085632832.

The previous prime is 30321123233. The next prime is 30321123247. The reversal of 30321123240 is 4232112303.

It is an interprime number because it is at equal distance from previous prime (30321123233) and next prime (30321123247).

It is a super-3 number, since 3×30321123240³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (30321123247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126337894 + ... + 126338133.

It is an arithmetic number, because the mean of its divisors is an integer number (2842605315).

Almost surely, 2^30321123240 is an apocalyptic number.

30321123240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30321123240 is an abundant number, since it is smaller than the sum of its proper divisors (60642246840).

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

30321123240 is a wasteful number, since it uses less digits than its factorization.

30321123240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252676041 (or 252676037 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 30321123240 its reverse (4232112303), we get a palindrome (34553235543).

The spelling of 30321123240 in words is "thirty billion, three hundred twenty-one million, one hundred twenty-three thousand, two hundred forty".