123430049 has 4 divisors (see below), whose sum is σ = 126440580. Its totient is φ = 120419520.

The previous prime is 123430031. The next prime is 123430063. The reversal of 123430049 is 940034321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25321024 + 98109025 = 5032^2 + 9905^2 .

It is a cyclic number.

It is not a de Polignac number, because 123430049 - 2¹⁶ = 123364513 is a prime.

It is a super-2 number, since 2×123430049² = 30469953992284802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123430019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1505204 + ... + 1505285.

It is an arithmetic number, because the mean of its divisors is an integer number (31610145).

Almost surely, 2^123430049 is an apocalyptic number.

It is an amenable number.

123430049 is a deficient number, since it is larger than the sum of its proper divisors (3010531).

123430049 is an equidigital number, since it uses as much as digits as its factorization.

123430049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3010530.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 123430049 is about 11109.9076953861. The cubic root of 123430049 is about 497.8979067933.

The spelling of 123430049 in words is "one hundred twenty-three million, four hundred thirty thousand, forty-nine".