1233428101 has 2 divisors, whose sum is σ = 1233428102. Its totient is φ = 1233428100.

The previous prime is 1233428083. The next prime is 1233428123. The reversal of 1233428101 is 1018243321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 808037476 + 425390625 = 28426^2 + 20625^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233428101 - 2¹⁹ = 1232903813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1233428171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616714050 + 616714051.

It is an arithmetic number, because the mean of its divisors is an integer number (616714051).

Almost surely, 2^1233428101 is an apocalyptic number.

It is an amenable number.

1233428101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233428101 is an equidigital number, since it uses as much as digits as its factorization.

1233428101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1233428101 is about 35120.1950592533. The cubic root of 1233428101 is about 1072.4357417358.

The spelling of 1233428101 in words is "one billion, two hundred thirty-three million, four hundred twenty-eight thousand, one hundred one".