30031120000 has 480 divisors, whose sum is σ = 89361645120. Its totient is φ = 10015488000.

The previous prime is 30031119949. The next prime is 30031120003. The reversal of 30031120000 is 2113003.

It is a super-3 number, since 3×30031120000³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (30031120003) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 184239919 + ... + 184240081.

It is an arithmetic number, because the mean of its divisors is an integer number (186170094).

Almost surely, 2^30031120000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30031120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44680822560).

30031120000 is an abundant number, since it is smaller than the sum of its proper divisors (59330525120).

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

30031120000 is an equidigital number, since it uses as much as digits as its factorization.

30031120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

Adding to 30031120000 its reverse (2113003), we get a palindrome (30033233003).

The spelling of 30031120000 in words is "thirty billion, thirty-one million, one hundred twenty thousand".