311431321144042 has 64 divisors (see below), whose sum is σ = 544769251246080. Its totient is φ = 132095780924800.

The previous prime is 311431321144007. The next prime is 311431321144061. The reversal of 311431321144042 is 240441123134113.

It is a junction number, because it is equal to n+sod(n) for n = 311431321143989 and 311431321144007.

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, 427813023 + ... + 428540365.

It is an arithmetic number, because the mean of its divisors is an integer number (8512019550720).

Almost surely, 2^{311431321144042} is an apocalyptic number.

311431321144042 is a deficient number, since it is larger than the sum of its proper divisors (233337930102038).

311431321144042 is a wasteful number, since it uses less digits than its factorization.

311431321144042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748059.

The product of its (nonzero) digits is 27648, while the sum is 34.

Adding to 311431321144042 its reverse (240441123134113), we get a palindrome (551872444278155).

The spelling of 311431321144042 in words is "three hundred eleven trillion, four hundred thirty-one billion, three hundred twenty-one million, one hundred forty-four thousand, forty-two".