1420444011023 has 4 divisors (see below), whose sum is σ = 1438424315040. Its totient is φ = 1402463707008.

The previous prime is 1420444010939. The next prime is 1420444011053. The reversal of 1420444011023 is 3201104440241.

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

It is not a de Polignac number, because 1420444011023 - 2¹⁸ = 1420443748879 is a prime.

It is a super-2 number, since 2×1420444011023² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1420444010983 and 1420444011001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420444011053) 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, 8990151890 + ... + 8990152047.

It is an arithmetic number, because the mean of its divisors is an integer number (359606078760).

Almost surely, 2^{1420444011023} is an apocalyptic number.

1420444011023 is a deficient number, since it is larger than the sum of its proper divisors (17980304017).

1420444011023 is an equidigital number, since it uses as much as digits as its factorization.

1420444011023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17980304016.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 1420444011023 its reverse (3201104440241), we get a palindrome (4621548451264).

The spelling of 1420444011023 in words is "one trillion, four hundred twenty billion, four hundred forty-four million, eleven thousand, twenty-three".