13203302131 has 4 divisors (see below), whose sum is σ = 13204627632. Its totient is φ = 13201976632.

The previous prime is 13203302117. The next prime is 13203302171. The reversal of 13203302131 is 13120330231.

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 13203302131 - 2¹⁹ = 13202777843 is a prime.

It is a super-2 number, since 2×13203302131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13203302099 and 13203302108.

It is not an unprimeable number, because it can be changed into a prime (13203302171) 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, 647695 + ... + 667768.

It is an arithmetic number, because the mean of its divisors is an integer number (3301156908).

Almost surely, 2^13203302131 is an apocalyptic number.

13203302131 is a deficient number, since it is larger than the sum of its proper divisors (1325501).

13203302131 is a wasteful number, since it uses less digits than its factorization.

13203302131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325500.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 13203302131 its reverse (13120330231), we get a palindrome (26323632362).

The spelling of 13203302131 in words is "thirteen billion, two hundred three million, three hundred two thousand, one hundred thirty-one".