13203020439 has 32 divisors (see below), whose sum is σ = 22637312000. Its totient is φ = 7449073632.

The previous prime is 13203020431. The next prime is 13203020473. The reversal of 13203020439 is 93402030231.

It is a happy number.

13203020439 is a `hidden beast` number, since 1 + 3 + 203 + 0 + 20 + 439 = 666.

It is not a de Polignac number, because 13203020439 - 2³ = 13203020431 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203020431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 427204 + ... + 457065.

It is an arithmetic number, because the mean of its divisors is an integer number (707416000).

Almost surely, 2^13203020439 is an apocalyptic number.

13203020439 is a deficient number, since it is larger than the sum of its proper divisors (9434291561).

13203020439 is an equidigital number, since it uses as much as digits as its factorization.

13203020439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884364 (or 884358 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The spelling of 13203020439 in words is "thirteen billion, two hundred three million, twenty thousand, four hundred thirty-nine".