13530345031 has 4 divisors (see below), whose sum is σ = 15463251472. Its totient is φ = 11597438592.

The previous prime is 13530345001. The next prime is 13530345107. The reversal of 13530345031 is 13054303531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13054303531 = 433 ⋅30148507.

It is a cyclic number.

It is not a de Polignac number, because 13530345031 - 2⁷ = 13530344903 is a prime.

It is a super-2 number, since 2×13530345031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13530345001) 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, 966453210 + ... + 966453223.

It is an arithmetic number, because the mean of its divisors is an integer number (3865812868).

Almost surely, 2^13530345031 is an apocalyptic number.

13530345031 is a deficient number, since it is larger than the sum of its proper divisors (1932906441).

13530345031 is an equidigital number, since it uses as much as digits as its factorization.

13530345031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932906440.

The product of its (nonzero) digits is 8100, while the sum is 28.

Adding to 13530345031 its reverse (13054303531), we get a palindrome (26584648562).

The spelling of 13530345031 in words is "thirteen billion, five hundred thirty million, three hundred forty-five thousand, thirty-one".