1230400882309 has 4 divisors (see below), whose sum is σ = 1230643235404. Its totient is φ = 1230158529216.

The previous prime is 1230400882283. The next prime is 1230400882331. The reversal of 1230400882309 is 9032880040321.

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 1136562813409 + 93838068900 = 1066097^2 + 306330^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230400882309 - 2¹⁹ = 1230400358021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230400882609) 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, 121168932 + ... + 121179085.

It is an arithmetic number, because the mean of its divisors is an integer number (307660808851).

Almost surely, 2^{1230400882309} is an apocalyptic number.

It is an amenable number.

1230400882309 is a deficient number, since it is larger than the sum of its proper divisors (242353095).

1230400882309 is an equidigital number, since it uses as much as digits as its factorization.

1230400882309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242353094.

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 1230400882309 in words is "one trillion, two hundred thirty billion, four hundred million, eight hundred eighty-two thousand, three hundred nine".