311032142011 has 4 divisors (see below), whose sum is σ = 311270847952. Its totient is φ = 310793436072.

The previous prime is 311032141999. The next prime is 311032142023. The reversal of 311032142011 is 110241230113.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (311032141999) and next prime (311032142023).

It is a cyclic number.

It is not a de Polignac number, because 311032142011 - 2¹¹ = 311032139963 is a prime.

It is a super-2 number, since 2×311032142011² (a number of 24 digits) contains 22 as substring.

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 311032142011.

It is not an unprimeable number, because it can be changed into a prime (311032142051) 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, 119351016 + ... + 119353621.

It is an arithmetic number, because the mean of its divisors is an integer number (77817711988).

Almost surely, 2^311032142011 is an apocalyptic number.

311032142011 is a deficient number, since it is larger than the sum of its proper divisors (238705941).

311032142011 is a wasteful number, since it uses less digits than its factorization.

311032142011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238705940.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 311032142011 its reverse (110241230113), we get a palindrome (421273372124).

The spelling of 311032142011 in words is "three hundred eleven billion, thirty-two million, one hundred forty-two thousand, eleven".