31040412211 has 2 divisors, whose sum is σ = 31040412212. Its totient is φ = 31040412210.

The previous prime is 31040412209. The next prime is 31040412239. The reversal of 31040412211 is 11221404013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31040412211 - 2¹ = 31040412209 is a prime.

Together with 31040412209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (31040412281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15520206105 + 15520206106.

It is an arithmetic number, because the mean of its divisors is an integer number (15520206106).

Almost surely, 2^31040412211 is an apocalyptic number.

31040412211 is a deficient number, since it is larger than the sum of its proper divisors (1).

31040412211 is an equidigital number, since it uses as much as digits as its factorization.

31040412211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 31040412211 its reverse (11221404013), we get a palindrome (42261816224).

The spelling of 31040412211 in words is "thirty-one billion, forty million, four hundred twelve thousand, two hundred eleven".