30011121030 has 128 divisors (see below), whose sum is σ = 80569313280. Its totient is φ = 7091978240.

The previous prime is 30011121029. The next prime is 30011121043. The reversal of 30011121030 is 3012111003.

It is a junction number, because it is equal to n+sod(n) for n = 30011120997 and 30011121015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3982306 + ... + 3989834.

It is an arithmetic number, because the mean of its divisors is an integer number (629447760).

Almost surely, 2^30011121030 is an apocalyptic number.

30011121030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30011121030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40284656640).

30011121030 is an abundant number, since it is smaller than the sum of its proper divisors (50558192250).

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

30011121030 is a wasteful number, since it uses less digits than its factorization.

30011121030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7854.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 30011121030 its reverse (3012111003), we get a palindrome (33023232033).

The spelling of 30011121030 in words is "thirty billion, eleven million, one hundred twenty-one thousand, thirty".