2420142021243 has 24 divisors (see below), whose sum is σ = 3648216073632. Its totient is φ = 1543081909248.

The previous prime is 2420142021233. The next prime is 2420142021259. The reversal of 2420142021243 is 3421202410242.

It is a happy number.

2420142021243 is a `hidden beast` number, since 2 + 4 + 20 + 1 + 420 + 212 + 4 + 3 = 666.

It is not a de Polignac number, because 2420142021243 - 2⁶ = 2420142021179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2420142021223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 887205 + ... + 2372217.

It is an arithmetic number, because the mean of its divisors is an integer number (152009003068).

Almost surely, 2^{2420142021243} is an apocalyptic number.

2420142021243 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2420142021243 is a deficient number, since it is larger than the sum of its proper divisors (1228074052389).

2420142021243 is a wasteful number, since it uses less digits than its factorization.

2420142021243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492915 (or 1492912 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 2420142021243 its reverse (3421202410242), we get a palindrome (5841344431485).

The spelling of 2420142021243 in words is "two trillion, four hundred twenty billion, one hundred forty-two million, twenty-one thousand, two hundred forty-three".