12331011021 has 8 divisors (see below), whose sum is σ = 18790112064. Its totient is φ = 7046292000.

The previous prime is 12331010929. The next prime is 12331011037. The reversal of 12331011021 is 12011013321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12331011021 - 2⁷ = 12331010893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331011071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293595480 + ... + 293595521.

It is an arithmetic number, because the mean of its divisors is an integer number (2348764008).

Almost surely, 2^12331011021 is an apocalyptic number.

It is an amenable number.

12331011021 is a deficient number, since it is larger than the sum of its proper divisors (6459101043).

12331011021 is an equidigital number, since it uses as much as digits as its factorization.

12331011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587191011.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12331011021 its reverse (12011013321), we get a palindrome (24342024342).

The spelling of 12331011021 in words is "twelve billion, three hundred thirty-one million, eleven thousand, twenty-one".