331401021211142 has 24 divisors (see below), whose sum is σ = 506675228666544. Its totient is φ = 162568484927264.

The previous prime is 331401021211103. The next prime is 331401021211159. The reversal of 331401021211142 is 241112120104133.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164465543 + ... + 166468365.

It is an arithmetic number, because the mean of its divisors is an integer number (21111467861106).

Almost surely, 2^{331401021211142} is an apocalyptic number.

331401021211142 is a deficient number, since it is larger than the sum of its proper divisors (175274207455402).

331401021211142 is a wasteful number, since it uses less digits than its factorization.

331401021211142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032384 (or 2032331 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 331401021211142 its reverse (241112120104133), we get a palindrome (572513141315275).

The spelling of 331401021211142 in words is "three hundred thirty-one trillion, four hundred one billion, twenty-one million, two hundred eleven thousand, one hundred forty-two".