12021311011230 has 48 divisors (see below), whose sum is σ = 31256500888080. Its totient is φ = 3205570909824.

The previous prime is 12021311011219. The next prime is 12021311011247. The reversal of 12021311011230 is 3211011312021.

12021311011230 is a `hidden beast` number, since 1 + 202 + 131 + 101 + 1 + 230 = 666.

It is a super-2 number, since 2×12021311011230² (a number of 27 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 271881 + ... + 4910859.

It is an arithmetic number, because the mean of its divisors is an integer number (651177101835).

Almost surely, 2^{12021311011230} is an apocalyptic number.

12021311011230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021311011230 is an abundant number, since it is smaller than the sum of its proper divisors (19235189876850).

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

12021311011230 is a wasteful number, since it uses less digits than its factorization.

12021311011230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4667785 (or 4667782 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 12021311011230 its reverse (3211011312021), we get a palindrome (15232322323251).

The spelling of 12021311011230 in words is "twelve trillion, twenty-one billion, three hundred eleven million, eleven thousand, two hundred thirty".