311313213032 has 8 divisors (see below), whose sum is σ = 583712274450. Its totient is φ = 155656606512.

The previous prime is 311313212989. The next prime is 311313213061. The reversal of 311313213032 is 230312313113.

It can be written as a sum of positive squares in only one way, i.e., 249514236196 + 61798976836 = 499514^2 + 248594^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 311313212989 and 311313213007.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19457075807 + ... + 19457075822.

Almost surely, 2^311313213032 is an apocalyptic number.

It is an amenable number.

311313213032 is a deficient number, since it is larger than the sum of its proper divisors (272399061418).

311313213032 is a wasteful number, since it uses less digits than its factorization.

311313213032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38914151635 (or 38914151631 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 311313213032 its reverse (230312313113), we get a palindrome (541625526145).

The spelling of 311313213032 in words is "three hundred eleven billion, three hundred thirteen million, two hundred thirteen thousand, thirty-two".