123210049 has 2 divisors, whose sum is σ = 123210050. Its totient is φ = 123210048.

The previous prime is 123210029. The next prime is 123210091. The reversal of 123210049 is 940012321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123210000 + 49 = 11100^2 + 7^2 .

It is a cyclic number.

It is not a de Polignac number, because 123210049 - 2¹³ = 123201857 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123210019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61605024 + 61605025.

It is an arithmetic number, because the mean of its divisors is an integer number (61605025).

Almost surely, 2^123210049 is an apocalyptic number.

It is an amenable number.

123210049 is a deficient number, since it is larger than the sum of its proper divisors (1).

123210049 is an equidigital number, since it uses as much as digits as its factorization.

123210049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 123210049 is about 11100.0022072070. The cubic root of 123210049 is about 497.6019154354.

It can be divided in two parts, 1232100 and 49, that multiplied together give a square (60372900 = 7770²).

The spelling of 123210049 in words is "one hundred twenty-three million, two hundred ten thousand, forty-nine".