31402222120111 has 2 divisors, whose sum is σ = 31402222120112. Its totient is φ = 31402222120110.

The previous prime is 31402222120081. The next prime is 31402222120169. The reversal of 31402222120111 is 11102122220413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31402222120111 - 2¹¹ = 31402222118063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31402222120811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15701111060055 + 15701111060056.

It is an arithmetic number, because the mean of its divisors is an integer number (15701111060056).

Almost surely, 2^{31402222120111} is an apocalyptic number.

31402222120111 is a deficient number, since it is larger than the sum of its proper divisors (1).

31402222120111 is an equidigital number, since it uses as much as digits as its factorization.

31402222120111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 31402222120111 its reverse (11102122220413), we get a palindrome (42504344340524).

The spelling of 31402222120111 in words is "thirty-one trillion, four hundred two billion, two hundred twenty-two million, one hundred twenty thousand, one hundred eleven".