31231323200011 has 12 divisors (see below), whose sum is σ = 34329136914072. Its totient is φ = 28391704748000.

The previous prime is 31231323199997. The next prime is 31231323200087. The reversal of 31231323200011 is 11000232313213.

It is not a de Polignac number, because 31231323200011 - 2⁹ = 31231323199499 is a prime.

It is a super-2 number, since 2×31231323200011² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31231323200411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6785196 + ... + 10416406.

It is an arithmetic number, because the mean of its divisors is an integer number (2860761409506).

Almost surely, 2^{31231323200011} is an apocalyptic number.

31231323200011 is a deficient number, since it is larger than the sum of its proper divisors (3097813714061).

31231323200011 is a wasteful number, since it uses less digits than its factorization.

31231323200011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3702314 (or 3702303 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31231323200011 its reverse (11000232313213), we get a palindrome (42231555513224).

The spelling of 31231323200011 in words is "thirty-one trillion, two hundred thirty-one billion, three hundred twenty-three million, two hundred thousand, eleven".