1143231020331 has 8 divisors (see below), whose sum is σ = 1524315368400. Its totient is φ = 762150342912.

The previous prime is 1143231020329. The next prime is 1143231020359. The reversal of 1143231020331 is 1330201323411.

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

It is not a de Polignac number, because 1143231020331 - 2¹ = 1143231020329 is a prime.

It is a super-2 number, since 2×1143231020331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1143231020731) 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, 82306 + ... + 1514343.

It is an arithmetic number, because the mean of its divisors is an integer number (190539421050).

Almost surely, 2^{1143231020331} is an apocalyptic number.

1143231020331 is a deficient number, since it is larger than the sum of its proper divisors (381084348069).

1143231020331 is a wasteful number, since it uses less digits than its factorization.

1143231020331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835325.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1143231020331 its reverse (1330201323411), we get a palindrome (2473432343742).

The spelling of 1143231020331 in words is "one trillion, one hundred forty-three billion, two hundred thirty-one million, twenty thousand, three hundred thirty-one".