311012030130123 has 32 divisors (see below), whose sum is σ = 477249550337536. Its totient is φ = 176477105645568.

The previous prime is 311012030130121. The next prime is 311012030130181. The reversal of 311012030130123 is 321031030210113.

It is a happy number.

It is not a de Polignac number, because 311012030130123 - 2¹ = 311012030130121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 311012030130123.

It is not an unprimeable number, because it can be changed into a prime (311012030130121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67925836 + ... + 72359817.

It is an arithmetic number, because the mean of its divisors is an integer number (14914048448048).

Almost surely, 2^{311012030130123} is an apocalyptic number.

311012030130123 is a deficient number, since it is larger than the sum of its proper divisors (166237520207413).

311012030130123 is a wasteful number, since it uses less digits than its factorization.

311012030130123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140286403.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 311012030130123 its reverse (321031030210113), we get a palindrome (632043060340236).

The spelling of 311012030130123 in words is "three hundred eleven trillion, twelve billion, thirty million, one hundred thirty thousand, one hundred twenty-three".