1002320143451 has 4 divisors (see below), whose sum is σ = 1093440156504. Its totient is φ = 911200130400.

The previous prime is 1002320143439. The next prime is 1002320143457. The reversal of 1002320143451 is 1543410232001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1002320143451 - 2³⁴ = 985140274267 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1002320143451.

It is not an unprimeable number, because it can be changed into a prime (1002320143457) 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, 45560006510 + ... + 45560006531.

It is an arithmetic number, because the mean of its divisors is an integer number (273360039126).

Almost surely, 2^{1002320143451} is an apocalyptic number.

1002320143451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1002320143451 is a deficient number, since it is larger than the sum of its proper divisors (91120013053).

1002320143451 is an equidigital number, since it uses as much as digits as its factorization.

1002320143451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91120013052.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 1002320143451 its reverse (1543410232001), we get a palindrome (2545730375452).

The spelling of 1002320143451 in words is "one trillion, two billion, three hundred twenty million, one hundred forty-three thousand, four hundred fifty-one".