331143400340242 has 64 divisors (see below), whose sum is σ = 605134778745600. Its totient is φ = 132666599172096.

The previous prime is 331143400340237. The next prime is 331143400340261. The reversal of 331143400340242 is 242043004341133.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 331143400340198 and 331143400340207.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 658880998 + ... + 659383390.

It is an arithmetic number, because the mean of its divisors is an integer number (9455230917900).

Almost surely, 2^{331143400340242} is an apocalyptic number.

331143400340242 is a deficient number, since it is larger than the sum of its proper divisors (273991378405358).

331143400340242 is a wasteful number, since it uses less digits than its factorization.

331143400340242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521155.

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

Adding to 331143400340242 its reverse (242043004341133), we get a palindrome (573186404681375).

The spelling of 331143400340242 in words is "three hundred thirty-one trillion, one hundred forty-three billion, four hundred million, three hundred forty thousand, two hundred forty-two".