311311020002 has 8 divisors (see below), whose sum is σ = 466979928300. Its totient is φ = 155651043904.

The previous prime is 311311020001. The next prime is 311311020049. The reversal of 311311020002 is 200020113113.

It can be written as a sum of positive squares in 2 ways, for example, as 293058739801 + 18252280201 = 541349^2 + 135101^2 .

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

It is a super-3 number, since 3×311311020002³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (311311020001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2145227 + ... + 2285742.

Almost surely, 2^311311020002 is an apocalyptic number.

311311020002 is a deficient number, since it is larger than the sum of its proper divisors (155668908298).

311311020002 is a wasteful number, since it uses less digits than its factorization.

311311020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4466100.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 311311020002 its reverse (200020113113), we get a palindrome (511331133115).

The spelling of 311311020002 in words is "three hundred eleven billion, three hundred eleven million, twenty thousand, two".