1234202432123 has 2 divisors, whose sum is σ = 1234202432124. Its totient is φ = 1234202432122.

The previous prime is 1234202432077. The next prime is 1234202432213. The reversal of 1234202432123 is 3212342024321.

Together with next prime (1234202432213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1234202432123 - 2¹⁸ = 1234202169979 is a prime.

It is not a weakly prime, because it can be changed into another prime (1234202462123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617101216061 + 617101216062.

It is an arithmetic number, because the mean of its divisors is an integer number (617101216062).

Almost surely, 2^{1234202432123} is an apocalyptic number.

1234202432123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234202432123 is an equidigital number, since it uses as much as digits as its factorization.

1234202432123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 1234202432123 its reverse (3212342024321), we get a palindrome (4446544456444).

The spelling of 1234202432123 in words is "one trillion, two hundred thirty-four billion, two hundred two million, four hundred thirty-two thousand, one hundred twenty-three".