311443120038 has 16 divisors (see below), whose sum is σ = 625309925040. Its totient is φ = 103410425856.

The previous prime is 311443120031. The next prime is 311443120039. The reversal of 311443120038 is 830021344113.

It is a happy number.

311443120038 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 311443119987 and 311443120014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311443120031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100985203 + ... + 100988286.

It is an arithmetic number, because the mean of its divisors is an integer number (39081870315).

Almost surely, 2^311443120038 is an apocalyptic number.

311443120038 is an abundant number, since it is smaller than the sum of its proper divisors (313866805002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311443120038 is a wasteful number, since it uses less digits than its factorization.

311443120038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201973751.

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 311443120038 in words is "three hundred eleven billion, four hundred forty-three million, one hundred twenty thousand, thirty-eight".