119430821 has 2 divisors, whose sum is σ = 119430822. Its totient is φ = 119430820.

The previous prime is 119430803. The next prime is 119430841. The reversal of 119430821 is 128034911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111534721 + 7896100 = 10561^2 + 2810^2 .

It is a cyclic number.

It is not a de Polignac number, because 119430821 - 2¹⁸ = 119168677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (119430841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59715410 + 59715411.

It is an arithmetic number, because the mean of its divisors is an integer number (59715411).

Almost surely, 2^119430821 is an apocalyptic number.

It is an amenable number.

119430821 is a deficient number, since it is larger than the sum of its proper divisors (1).

119430821 is an equidigital number, since it uses as much as digits as its factorization.

119430821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 119430821 is about 10928.4409226568. The cubic root of 119430821 is about 492.4613363448.

The spelling of 119430821 in words is "one hundred nineteen million, four hundred thirty thousand, eight hundred twenty-one".