123001442 has 4 divisors (see below), whose sum is σ = 184502166. Its totient is φ = 61500720.

The previous prime is 123001391. The next prime is 123001453. The reversal of 123001442 is 244100321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244100321 = 499 ⋅489179.

It can be written as a sum of positive squares in only one way, i.e., 78659161 + 44342281 = 8869^2 + 6659^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 123001442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30750359 + ... + 30750362.

Almost surely, 2^123001442 is an apocalyptic number.

123001442 is a deficient number, since it is larger than the sum of its proper divisors (61500724).

123001442 is an equidigital number, since it uses as much as digits as its factorization.

123001442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61500723.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 123001442 is about 11090.6015165995. The cubic root of 123001442 is about 497.3209267718.

Adding to 123001442 its reverse (244100321), we get a palindrome (367101763).

The spelling of 123001442 in words is "one hundred twenty-three million, one thousand, four hundred forty-two".