311402143233044 has 12 divisors (see below), whose sum is σ = 568647391990944. Its totient is φ = 148931459807064.

The previous prime is 311402143233011. The next prime is 311402143233047. The reversal of 311402143233044 is 440332341204113.

It is a junction number, because it is equal to n+sod(n) for n = 311402143232995 and 311402143233013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311402143233047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1692402952262 + ... + 1692402952445.

It is an arithmetic number, because the mean of its divisors is an integer number (47387282665912).

Almost surely, 2^{311402143233044} is an apocalyptic number.

It is an amenable number.

311402143233044 is a deficient number, since it is larger than the sum of its proper divisors (257245248757900).

311402143233044 is a wasteful number, since it uses less digits than its factorization.

311402143233044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384805904734 (or 3384805904732 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 311402143233044 its reverse (440332341204113), we get a palindrome (751734484437157).

The spelling of 311402143233044 in words is "three hundred eleven trillion, four hundred two billion, one hundred forty-three million, two hundred thirty-three thousand, forty-four".