123340242002 has 4 divisors (see below), whose sum is σ = 185010363006. Its totient is φ = 61670121000.

The previous prime is 123340241993. The next prime is 123340242023. The reversal of 123340242002 is 200242043321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200242043321 = 7057 ⋅28374953.

It can be written as a sum of positive squares in only one way, i.e., 122499300001 + 840942001 = 349999^2 + 28999^2 .

It is a super-2 number, since 2×123340242002² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30835060499 + ... + 30835060502.

Almost surely, 2^123340242002 is an apocalyptic number.

123340242002 is a deficient number, since it is larger than the sum of its proper divisors (61670121004).

123340242002 is an equidigital number, since it uses as much as digits as its factorization.

123340242002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61670121003.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 123340242002 its reverse (200242043321), we get a palindrome (323582285323).

The spelling of 123340242002 in words is "one hundred twenty-three billion, three hundred forty million, two hundred forty-two thousand, two".