11820912030 has 24 divisors (see below), whose sum is σ = 30734371512. Its totient is φ = 3152243184.

The previous prime is 11820912001. The next prime is 11820912067. The reversal of 11820912030 is 3021902811.

It is a super-2 number, since 2×11820912030² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11820911985 and 11820912003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65671644 + ... + 65671823.

It is an arithmetic number, because the mean of its divisors is an integer number (1280598813).

Almost surely, 2^11820912030 is an apocalyptic number.

11820912030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11820912030 is an abundant number, since it is smaller than the sum of its proper divisors (18913459482).

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

11820912030 is a wasteful number, since it uses less digits than its factorization.

11820912030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131343480 (or 131343477 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The spelling of 11820912030 in words is "eleven billion, eight hundred twenty million, nine hundred twelve thousand, thirty".