311423145155344 has 40 divisors (see below), whose sum is σ = 604188768601880. Its totient is φ = 155503477555200.

The previous prime is 311423145155281. The next prime is 311423145155399. The reversal of 311423145155344 is 443551541324113.

It can be written as a sum of positive squares in 4 ways, for example, as 10028546236944 + 301394598918400 = 3166788^2 + 17360720^2 .

It is a junction number, because it is equal to n+sod(n) for n = 311423145155294 and 311423145155303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351710614 + ... + 352594954.

It is an arithmetic number, because the mean of its divisors is an integer number (15104719215047).

Almost surely, 2^{311423145155344} is an apocalyptic number.

It is an amenable number.

311423145155344 is a deficient number, since it is larger than the sum of its proper divisors (292765623446536).

311423145155344 is a wasteful number, since it uses less digits than its factorization.

311423145155344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913739 (or 913733 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 46.

Adding to 311423145155344 its reverse (443551541324113), we get a palindrome (754974686479457).

The spelling of 311423145155344 in words is "three hundred eleven trillion, four hundred twenty-three billion, one hundred forty-five million, one hundred fifty-five thousand, three hundred forty-four".