111037981661149 has 2 divisors, whose sum is σ = 111037981661150. Its totient is φ = 111037981661148.

The previous prime is 111037981661143. The next prime is 111037981661209. The reversal of 111037981661149 is 941166189730111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110137678622500 + 900303038649 = 10494650^2 + 948843^2 .

It is a cyclic number.

It is not a de Polignac number, because 111037981661149 - 2²⁷ = 111037847443421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111037981661093 and 111037981661102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111037981661143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55518990830574 + 55518990830575.

It is an arithmetic number, because the mean of its divisors is an integer number (55518990830575).

Almost surely, 2^{111037981661149} is an apocalyptic number.

It is an amenable number.

111037981661149 is a deficient number, since it is larger than the sum of its proper divisors (1).

111037981661149 is an equidigital number, since it uses as much as digits as its factorization.

111037981661149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 58.

The spelling of 111037981661149 in words is "one hundred eleven trillion, thirty-seven billion, nine hundred eighty-one million, six hundred sixty-one thousand, one hundred forty-nine".