31441545105011 has 2 divisors, whose sum is σ = 31441545105012. Its totient is φ = 31441545105010.

The previous prime is 31441545105007. The next prime is 31441545105049. The reversal of 31441545105011 is 11050154514413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31441545105011 - 2² = 31441545105007 is a prime.

It is not a weakly prime, because it can be changed into another prime (31441545305011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15720772552505 + 15720772552506.

It is an arithmetic number, because the mean of its divisors is an integer number (15720772552506).

Almost surely, 2^{31441545105011} is an apocalyptic number.

31441545105011 is a deficient number, since it is larger than the sum of its proper divisors (1).

31441545105011 is an equidigital number, since it uses as much as digits as its factorization.

31441545105011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24000, while the sum is 35.

Adding to 31441545105011 its reverse (11050154514413), we get a palindrome (42491699619424).

The spelling of 31441545105011 in words is "thirty-one trillion, four hundred forty-one billion, five hundred forty-five million, one hundred five thousand, eleven".