124320102442 has 4 divisors (see below), whose sum is σ = 186480153666. Its totient is φ = 62160051220.

The previous prime is 124320102437. The next prime is 124320102443. The reversal of 124320102442 is 244201023421.

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

It can be written as a sum of positive squares in only one way, i.e., 124038500481 + 281601961 = 352191^2 + 16781^2 .

It is not an unprimeable number, because it can be changed into a prime (124320102443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31080025609 + ... + 31080025612.

Almost surely, 2^124320102442 is an apocalyptic number.

124320102442 is a deficient number, since it is larger than the sum of its proper divisors (62160051224).

124320102442 is an equidigital number, since it uses as much as digits as its factorization.

124320102442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62160051223.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 124320102442 its reverse (244201023421), we get a palindrome (368521125863).

The spelling of 124320102442 in words is "one hundred twenty-four billion, three hundred twenty million, one hundred two thousand, four hundred forty-two".