331020224432143 has 4 divisors (see below), whose sum is σ = 332753314612608. Its totient is φ = 329287134251680.

The previous prime is 331020224432129. The next prime is 331020224432147. The reversal of 331020224432143 is 341234422020133.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331020224432143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331020224432099 and 331020224432108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331020224432147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 866545089946 + ... + 866545090327.

It is an arithmetic number, because the mean of its divisors is an integer number (83188328653152).

Almost surely, 2^{331020224432143} is an apocalyptic number.

331020224432143 is a deficient number, since it is larger than the sum of its proper divisors (1733090180465).

331020224432143 is a wasteful number, since it uses less digits than its factorization.

331020224432143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733090180464.

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 331020224432143 its reverse (341234422020133), we get a palindrome (672254646452276).

The spelling of 331020224432143 in words is "three hundred thirty-one trillion, twenty billion, two hundred twenty-four million, four hundred thirty-two thousand, one hundred forty-three".