111369705641 has 2 divisors, whose sum is σ = 111369705642. Its totient is φ = 111369705640.

The previous prime is 111369705637. The next prime is 111369705649. The reversal of 111369705641 is 146507963111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66136923241 + 45232782400 = 257171^2 + 212680^2 .

It is a cyclic number.

It is not a de Polignac number, because 111369705641 - 2² = 111369705637 is a prime.

It is a super-2 number, since 2×111369705641² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111369705592 and 111369705601.

It is not a weakly prime, because it can be changed into another prime (111369705649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55684852820 + 55684852821.

It is an arithmetic number, because the mean of its divisors is an integer number (55684852821).

Almost surely, 2^111369705641 is an apocalyptic number.

It is an amenable number.

111369705641 is a deficient number, since it is larger than the sum of its proper divisors (1).

111369705641 is an equidigital number, since it uses as much as digits as its factorization.

111369705641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 44.

The spelling of 111369705641 in words is "one hundred eleven billion, three hundred sixty-nine million, seven hundred five thousand, six hundred forty-one".