11110202031997 has 2 divisors, whose sum is σ = 11110202031998. Its totient is φ = 11110202031996.

The previous prime is 11110202031979. The next prime is 11110202032021. The reversal of 11110202031997 is 79913020201111.

Together with previous prime (11110202031979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8185944709881 + 2924257322116 = 2861109^2 + 1710046^2 .

It is a cyclic number.

It is not a de Polignac number, because 11110202031997 - 2¹⁹ = 11110201507709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11110202061997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555101015998 + 5555101015999.

It is an arithmetic number, because the mean of its divisors is an integer number (5555101015999).

Almost surely, 2^{11110202031997} is an apocalyptic number.

It is an amenable number.

11110202031997 is a deficient number, since it is larger than the sum of its proper divisors (1).

11110202031997 is an equidigital number, since it uses as much as digits as its factorization.

11110202031997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 37.

The spelling of 11110202031997 in words is "eleven trillion, one hundred ten billion, two hundred two million, thirty-one thousand, nine hundred ninety-seven".