1232020013309 has 8 divisors (see below), whose sum is σ = 1239105831480. Its totient is φ = 1224942598656.

The previous prime is 1232020013261. The next prime is 1232020013327. The reversal of 1232020013309 is 9033100202321.

It can be written as a sum of positive squares in 4 ways, for example, as 315615869209 + 916404144100 = 561797^2 + 957290^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1232020013309 - 2¹⁶ = 1232019947773 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 (1232020093309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1806704 + ... + 2393369.

It is an arithmetic number, because the mean of its divisors is an integer number (154888228935).

Almost surely, 2^{1232020013309} is an apocalyptic number.

It is an amenable number.

1232020013309 is a deficient number, since it is larger than the sum of its proper divisors (7085818171).

1232020013309 is a wasteful number, since it uses less digits than its factorization.

1232020013309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4201759.

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 1232020013309 in words is "one trillion, two hundred thirty-two billion, twenty million, thirteen thousand, three hundred nine".