1420243336501 has 16 divisors (see below), whose sum is σ = 1551229286400. Its totient is φ = 1289570079600.

The previous prime is 1420243336481. The next prime is 1420243336507. The reversal of 1420243336501 is 1056333420241.

It is a happy number.

It is not a de Polignac number, because 1420243336501 - 2³³ = 1411653401909 is a prime.

It is a super-2 number, since 2×1420243336501² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420243336507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73888270 + ... + 73907488.

It is an arithmetic number, because the mean of its divisors is an integer number (96951830400).

Almost surely, 2^{1420243336501} is an apocalyptic number.

1420243336501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1420243336501 is a deficient number, since it is larger than the sum of its proper divisors (130985949899).

1420243336501 is a wasteful number, since it uses less digits than its factorization.

1420243336501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27000.

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 1420243336501 its reverse (1056333420241), we get a palindrome (2476576756742).

The spelling of 1420243336501 in words is "one trillion, four hundred twenty billion, two hundred forty-three million, three hundred thirty-six thousand, five hundred one".