31033230331011 has 32 divisors (see below), whose sum is σ = 44046975909888. Its totient is φ = 19393753320480.

The previous prime is 31033230330997. The next prime is 31033230331039. The reversal of 31033230331011 is 11013303233013.

It is not a de Polignac number, because 31033230331011 - 2¹⁰ = 31033230329987 is a prime.

It is a super-2 number, since 2×31033230331011² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31033230341011) 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 31 ways as a sum of consecutive naturals, for example, 18147751 + ... + 19784016.

It is an arithmetic number, because the mean of its divisors is an integer number (1376467997184).

Almost surely, 2^{31033230331011} is an apocalyptic number.

31033230331011 is a deficient number, since it is larger than the sum of its proper divisors (13013745578877).

31033230331011 is a wasteful number, since it uses less digits than its factorization.

31033230331011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37932031.

The product of its (nonzero) digits is 1458, while the sum is 24.

Adding to 31033230331011 its reverse (11013303233013), we get a palindrome (42046533564024).

The spelling of 31033230331011 in words is "thirty-one trillion, thirty-three billion, two hundred thirty million, three hundred thirty-one thousand, eleven".