12020311302021 has 96 divisors (see below), whose sum is σ = 20644278969600. Its totient is φ = 6655983114240.

The previous prime is 12020311301989. The next prime is 12020311302023.

12020311302021 is a `hidden beast` number, since 12 + 0 + 20 + 311 + 302 + 0 + 21 = 666.

12020311302021 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12020311302021 - 2⁵ = 12020311301989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12020311301985 and 12020311302003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020311302023) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 27117115 + ... + 27556823.

It is an arithmetic number, because the mean of its divisors is an integer number (215044572600).

Almost surely, 2^{12020311302021} is an apocalyptic number.

12020311302021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12020311302021 is a deficient number, since it is larger than the sum of its proper divisors (8623967667579).

12020311302021 is a wasteful number, since it uses less digits than its factorization.

12020311302021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440219 (or 440216 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

It can be divided in two parts, 1202031 and 1302021, that added together give a palindrome (2504052).

The spelling of 12020311302021 in words is "twelve trillion, twenty billion, three hundred eleven million, three hundred two thousand, twenty-one".