2421400041243 has 64 divisors (see below), whose sum is σ = 3730053888000. Its totient is φ = 1551545573760.

The previous prime is 2421400041233. The next prime is 2421400041301. The reversal of 2421400041243 is 3421400041242.

2421400041243 is a `hidden beast` number, since 242 + 1 + 4 + 0 + 0 + 0 + 412 + 4 + 3 = 666.

It is not a de Polignac number, because 2421400041243 - 2²⁵ = 2421366486811 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2421400041233) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15875458 + ... + 16027256.

It is an arithmetic number, because the mean of its divisors is an integer number (58282092000).

Almost surely, 2^{2421400041243} is an apocalyptic number.

2421400041243 is a deficient number, since it is larger than the sum of its proper divisors (1308653846757).

2421400041243 is a wasteful number, since it uses less digits than its factorization.

2421400041243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152089 (or 152083 counting only the distinct ones).

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

Adding to 2421400041243 its reverse (3421400041242), we get a palindrome (5842800082485).

Subtracting 2421400041243 from its reverse (3421400041242), we obtain a palindrome (999999999999).

The spelling of 2421400041243 in words is "two trillion, four hundred twenty-one billion, four hundred million, forty-one thousand, two hundred forty-three".