1233842401427 has 2 divisors, whose sum is σ = 1233842401428. Its totient is φ = 1233842401426.

The previous prime is 1233842401409. The next prime is 1233842401487. The reversal of 1233842401427 is 7241042483321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1233842401427 - 2⁸ = 1233842401171 is a prime.

It is not a weakly prime, because it can be changed into another prime (1233842401487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616921200713 + 616921200714.

It is an arithmetic number, because the mean of its divisors is an integer number (616921200714).

Almost surely, 2^{1233842401427} is an apocalyptic number.

1233842401427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233842401427 is an equidigital number, since it uses as much as digits as its factorization.

1233842401427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 258048, while the sum is 41.

Adding to 1233842401427 its reverse (7241042483321), we get a palindrome (8474884884748).

The spelling of 1233842401427 in words is "one trillion, two hundred thirty-three billion, eight hundred forty-two million, four hundred one thousand, four hundred twenty-seven".