1442123011 has 4 divisors (see below), whose sum is σ = 1648140592. Its totient is φ = 1236105432.

The previous prime is 1442122993. The next prime is 1442123041. The reversal of 1442123011 is 1103212441.

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

It is a cyclic number.

It is not a de Polignac number, because 1442123011 - 2¹³ = 1442114819 is a prime.

It is a super-2 number, since 2×1442123011² = 4159437557711412242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1442123011.

It is not an unprimeable number, because it can be changed into a prime (1442123041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103008780 + ... + 103008793.

It is an arithmetic number, because the mean of its divisors is an integer number (412035148).

Almost surely, 2^1442123011 is an apocalyptic number.

1442123011 is a deficient number, since it is larger than the sum of its proper divisors (206017581).

1442123011 is an equidigital number, since it uses as much as digits as its factorization.

1442123011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206017580.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1442123011 is about 37975.2947453999. The cubic root of 1442123011 is about 1129.7979148892.

Adding to 1442123011 its reverse (1103212441), we get a palindrome (2545335452).

The spelling of 1442123011 in words is "one billion, four hundred forty-two million, one hundred twenty-three thousand, eleven".