1442043101 has 2 divisors, whose sum is σ = 1442043102. Its totient is φ = 1442043100.

The previous prime is 1442043073. The next prime is 1442043107. The reversal of 1442043101 is 1013402441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 935748100 + 506295001 = 30590^2 + 22501^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442043101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442043107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721021550 + 721021551.

It is an arithmetic number, because the mean of its divisors is an integer number (721021551).

Almost surely, 2^1442043101 is an apocalyptic number.

It is an amenable number.

1442043101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442043101 is an equidigital number, since it uses as much as digits as its factorization.

1442043101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1442043101 is about 37974.2425994252. The cubic root of 1442043101 is about 1129.7770466234. Note that the first 3 decimals are identical.

Adding to 1442043101 its reverse (1013402441), we get a palindrome (2455445542).

The spelling of 1442043101 in words is "one billion, four hundred forty-two million, forty-three thousand, one hundred one".