311230101131011 has 4 divisors (see below), whose sum is σ = 315613623682224. Its totient is φ = 306846578579800.

The previous prime is 311230101130943. The next prime is 311230101131029. The reversal of 311230101131011 is 110131101032113.

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

It is a cyclic number.

It is not a de Polignac number, because 311230101131011 - 2¹¹ = 311230101128963 is a prime.

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 311230101131011.

It is not an unprimeable number, because it can be changed into a prime (311230101131311) 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, 2191761275500 + ... + 2191761275641.

It is an arithmetic number, because the mean of its divisors is an integer number (78903405920556).

Almost surely, 2^{311230101131011} is an apocalyptic number.

311230101131011 is a deficient number, since it is larger than the sum of its proper divisors (4383522551213).

311230101131011 is an equidigital number, since it uses as much as digits as its factorization.

311230101131011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4383522551212.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 311230101131011 its reverse (110131101032113), we get a palindrome (421361202163124).

The spelling of 311230101131011 in words is "three hundred eleven trillion, two hundred thirty billion, one hundred one million, one hundred thirty-one thousand, eleven".