123443051 has 2 divisors, whose sum is σ = 123443052. Its totient is φ = 123443050.

The previous prime is 123443039. The next prime is 123443059. The reversal of 123443051 is 150344321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123443051 - 2⁶ = 123442987 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (123443059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61721525 + 61721526.

It is an arithmetic number, because the mean of its divisors is an integer number (61721526).

Almost surely, 2^123443051 is an apocalyptic number.

123443051 is a deficient number, since it is larger than the sum of its proper divisors (1).

123443051 is an equidigital number, since it uses as much as digits as its factorization.

123443051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 123443051 is about 11110.4928333535. The cubic root of 123443051 is about 497.9153888714.

Adding to 123443051 its reverse (150344321), we get a palindrome (273787372).

The spelling of 123443051 in words is "one hundred twenty-three million, four hundred forty-three thousand, fifty-one".