31334220011 has 2 divisors, whose sum is σ = 31334220012. Its totient is φ = 31334220010.

The previous prime is 31334219951. The next prime is 31334220031. The reversal of 31334220011 is 11002243313.

It is an a-pointer prime, because the next prime (31334220031) can be obtained adding 31334220011 to its sum of digits (20).

It is a strong prime.

It is an emirp because it is prime and its reverse (11002243313) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31334220011 is a prime.

It is a super-3 number, since 3×31334220011³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (31334220031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15667110005 + 15667110006.

It is an arithmetic number, because the mean of its divisors is an integer number (15667110006).

Almost surely, 2^31334220011 is an apocalyptic number.

31334220011 is a deficient number, since it is larger than the sum of its proper divisors (1).

31334220011 is an equidigital number, since it uses as much as digits as its factorization.

31334220011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31334220011 its reverse (11002243313), we get a palindrome (42336463324).

The spelling of 31334220011 in words is "thirty-one billion, three hundred thirty-four million, two hundred twenty thousand, eleven".