140430043132321 has 4 divisors (see below), whose sum is σ = 140459713545492. Its totient is φ = 140400372719152.

The previous prime is 140430043132277. The next prime is 140430043132373. The reversal of 140430043132321 is 123231340034041.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11559755201296 + 128870287931025 = 3399964^2 + 11352105^2 .

It is a cyclic number.

It is not a de Polignac number, because 140430043132321 - 2¹⁵ = 140430043099553 is a prime.

It is a super-2 number, since 2×140430043132321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140430043132391) 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, 14835199486 + ... + 14835208951.

It is an arithmetic number, because the mean of its divisors is an integer number (35114928386373).

Almost surely, 2^{140430043132321} is an apocalyptic number.

It is an amenable number.

140430043132321 is a deficient number, since it is larger than the sum of its proper divisors (29670413171).

140430043132321 is an equidigital number, since it uses as much as digits as its factorization.

140430043132321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29670413170.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 140430043132321 its reverse (123231340034041), we get a palindrome (263661383166362).

The spelling of 140430043132321 in words is "one hundred forty trillion, four hundred thirty billion, forty-three million, one hundred thirty-two thousand, three hundred twenty-one".