2021431243130 has 64 divisors (see below), whose sum is σ = 4022657831808. Its totient is φ = 726641798400.

The previous prime is 2021431243057. The next prime is 2021431243141. The reversal of 2021431243130 is 313421341202.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 2021431243130.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1127180 + ... + 2305080.

It is an arithmetic number, because the mean of its divisors is an integer number (62854028622).

Almost surely, 2^{2021431243130} is an apocalyptic number.

2021431243130 is a deficient number, since it is larger than the sum of its proper divisors (2001226588678).

2021431243130 is a wasteful number, since it uses less digits than its factorization.

2021431243130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178271.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 2021431243130 its reverse (313421341202), we get a palindrome (2334852584332).

The spelling of 2021431243130 in words is "two trillion, twenty-one billion, four hundred thirty-one million, two hundred forty-three thousand, one hundred thirty".