1233420401 has 2 divisors, whose sum is σ = 1233420402. Its totient is φ = 1233420400.

The previous prime is 1233420371. The next prime is 1233420439. The reversal of 1233420401 is 1040243321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1164447376 + 68973025 = 34124^2 + 8305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1233420401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1233420451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616710200 + 616710201.

It is an arithmetic number, because the mean of its divisors is an integer number (616710201).

Almost surely, 2^1233420401 is an apocalyptic number.

It is an amenable number.

1233420401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233420401 is an equidigital number, since it uses as much as digits as its factorization.

1233420401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1233420401 is about 35120.0854355453. The cubic root of 1233420401 is about 1072.4335100769.

Adding to 1233420401 its reverse (1040243321), we get a palindrome (2273663722).

The spelling of 1233420401 in words is "one billion, two hundred thirty-three million, four hundred twenty thousand, four hundred one".