31320320101011 has 28 divisors (see below), whose sum is σ = 46959558675288. Its totient is φ = 20879964298944.

The previous prime is 31320320100997. The next prime is 31320320101051. The reversal of 31320320101011 is 11010102302313.

31320320101011 is a `hidden beast` number, since 3 + 1 + 320 + 320 + 1 + 0 + 10 + 11 = 666.

It is not a de Polignac number, because 31320320101011 - 2¹⁸ = 31320319838867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31320320101051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 76751931 + ... + 77158923.

It is an arithmetic number, because the mean of its divisors is an integer number (1677127095546).

Almost surely, 2^{31320320101011} is an apocalyptic number.

31320320101011 is a deficient number, since it is larger than the sum of its proper divisors (15639238574277).

31320320101011 is an equidigital number, since it uses as much as digits as its factorization.

31320320101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512574 (or 512559 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 31320320101011 its reverse (11010102302313), we get a palindrome (42330422403324).

The spelling of 31320320101011 in words is "thirty-one trillion, three hundred twenty billion, three hundred twenty million, one hundred one thousand, eleven".