311431321101011 has 8 divisors (see below), whose sum is σ = 311800234827120. Its totient is φ = 311062509934848.

The previous prime is 311431321100941. The next prime is 311431321101013. The reversal of 311431321101011 is 110101123134113.

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 311431321101011 - 2¹⁴ = 311431321084627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311431321101013) 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, 19562381 + ... + 31710398.

It is an arithmetic number, because the mean of its divisors is an integer number (38975029353390).

Almost surely, 2^{311431321101011} is an apocalyptic number.

311431321101011 is a deficient number, since it is larger than the sum of its proper divisors (368913726109).

311431321101011 is an equidigital number, since it uses as much as digits as its factorization.

311431321101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51279973.

The product of its (nonzero) digits is 216, while the sum is 23.

Adding to 311431321101011 its reverse (110101123134113), we get a palindrome (421532444235124).

The spelling of 311431321101011 in words is "three hundred eleven trillion, four hundred thirty-one billion, three hundred twenty-one million, one hundred one thousand, eleven".