111403661353 has 2 divisors, whose sum is σ = 111403661354. Its totient is φ = 111403661352.

The previous prime is 111403661329. The next prime is 111403661387. The reversal of 111403661353 is 353166304111.

It is an a-pointer prime, because the next prime (111403661387) can be obtained adding 111403661353 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97463844864 + 13939816489 = 312192^2 + 118067^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111403661353 is a prime.

It is not a weakly prime, because it can be changed into another prime (111403661323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55701830676 + 55701830677.

It is an arithmetic number, because the mean of its divisors is an integer number (55701830677).

Almost surely, 2^111403661353 is an apocalyptic number.

It is an amenable number.

111403661353 is a deficient number, since it is larger than the sum of its proper divisors (1).

111403661353 is an equidigital number, since it uses as much as digits as its factorization.

111403661353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 34.

Adding to 111403661353 its reverse (353166304111), we get a palindrome (464569965464).

The spelling of 111403661353 in words is "one hundred eleven billion, four hundred three million, six hundred sixty-one thousand, three hundred fifty-three".