30503522112 has 224 divisors, whose sum is σ = 93941213184. Its totient is φ = 8555366400.

The previous prime is 30503522111. The next prime is 30503522113. The reversal of 30503522112 is 21122530503.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30503522111) and next prime (30503522113).

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×30503522112² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30503522111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27958687 + ... + 27959777.

It is an arithmetic number, because the mean of its divisors is an integer number (419380416).

Almost surely, 2^30503522112 is an apocalyptic number.

30503522112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30503522112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46970606592).

30503522112 is an abundant number, since it is smaller than the sum of its proper divisors (63437691072).

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

30503522112 is a wasteful number, since it uses less digits than its factorization.

30503522112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477 (or 1467 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The spelling of 30503522112 in words is "thirty billion, five hundred three million, five hundred twenty-two thousand, one hundred twelve".