12021300131231 has 8 divisors (see below), whose sum is σ = 12948609398784. Its totient is φ = 11127711200760.

The previous prime is 12021300131219. The next prime is 12021300131237. The reversal of 12021300131231 is 13213100312021.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12021300131231 is a prime.

It is a super-2 number, since 2×12021300131231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021300131237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8430083531 + ... + 8430084956.

It is an arithmetic number, because the mean of its divisors is an integer number (1618576174848).

Almost surely, 2^{12021300131231} is an apocalyptic number.

12021300131231 is a deficient number, since it is larger than the sum of its proper divisors (927309267553).

12021300131231 is a wasteful number, since it uses less digits than its factorization.

12021300131231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16860168541.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12021300131231 its reverse (13213100312021), we get a palindrome (25234400443252).

The spelling of 12021300131231 in words is "twelve trillion, twenty-one billion, three hundred million, one hundred thirty-one thousand, two hundred thirty-one".