111402350730989 has 2 divisors, whose sum is σ = 111402350730990. Its totient is φ = 111402350730988.

The previous prime is 111402350730947. The next prime is 111402350731079. The reversal of 111402350730989 is 989037053204111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108120130074889 + 3282220656100 = 10398083^2 + 1811690^2 .

It is a cyclic number.

It is not a de Polignac number, because 111402350730989 - 2¹² = 111402350726893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111402350730989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111402350730389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55701175365494 + 55701175365495.

It is an arithmetic number, because the mean of its divisors is an integer number (55701175365495).

Almost surely, 2^{111402350730989} is an apocalyptic number.

It is an amenable number.

111402350730989 is a deficient number, since it is larger than the sum of its proper divisors (1).

111402350730989 is an equidigital number, since it uses as much as digits as its factorization.

111402350730989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 111402350730989 in words is "one hundred eleven trillion, four hundred two billion, three hundred fifty million, seven hundred thirty thousand, nine hundred eighty-nine".