30031321122 has 96 divisors (see below), whose sum is σ = 74136231936. Its totient is φ = 8696872800.

The previous prime is 30031321109. The next prime is 30031321123. The reversal of 30031321122 is 22112313003.

30031321122 is a `hidden beast` number, since 300 + 31 + 321 + 12 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30031321095 and 30031321104.

It is not an unprimeable number, because it can be changed into a prime (30031321123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6696693 + ... + 6701175.

It is an arithmetic number, because the mean of its divisors is an integer number (772252416).

Almost surely, 2^30031321122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30031321122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37068115968).

30031321122 is an abundant number, since it is smaller than the sum of its proper divisors (44104910814).

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

30031321122 is a wasteful number, since it uses less digits than its factorization.

30031321122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5996 (or 5993 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30031321122 its reverse (22112313003), we get a palindrome (52143634125).

It can be divided in two parts, 30031 and 321122, that added together give a palindrome (351153).

The spelling of 30031321122 in words is "thirty billion, thirty-one million, three hundred twenty-one thousand, one hundred twenty-two".