1233421051 has 2 divisors, whose sum is σ = 1233421052. Its totient is φ = 1233421050.

The previous prime is 1233420997. The next prime is 1233421093. The reversal of 1233421051 is 1501243321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1233421051 - 2¹⁷ = 1233289979 is a prime.

It is not a weakly prime, because it can be changed into another prime (1233421151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616710525 + 616710526.

It is an arithmetic number, because the mean of its divisors is an integer number (616710526).

Almost surely, 2^1233421051 is an apocalyptic number.

1233421051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233421051 is an equidigital number, since it uses as much as digits as its factorization.

1233421051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1233421051 is about 35120.0946895079. The cubic root of 1233421051 is about 1072.4336984640.

Adding to 1233421051 its reverse (1501243321), we get a palindrome (2734664372).

The spelling of 1233421051 in words is "one billion, two hundred thirty-three million, four hundred twenty-one thousand, fifty-one".