311021130423 has 8 divisors (see below), whose sum is σ = 414774047088. Its totient is φ = 207307817024.

The previous prime is 311021130377. The next prime is 311021130437. The reversal of 311021130423 is 324031120113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 311021130423 - 2²⁹ = 310484259511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 311021130423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311021130023) 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, 9882486 + ... + 9913907.

It is an arithmetic number, because the mean of its divisors is an integer number (51846755886).

Almost surely, 2^311021130423 is an apocalyptic number.

311021130423 is a deficient number, since it is larger than the sum of its proper divisors (103752916665).

311021130423 is a wasteful number, since it uses less digits than its factorization.

311021130423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19801633.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 311021130423 its reverse (324031120113), we get a palindrome (635052250536).

The spelling of 311021130423 in words is "three hundred eleven billion, twenty-one million, one hundred thirty thousand, four hundred twenty-three".