13430510331550 has 24 divisors (see below), whose sum is σ = 26902345311576. Its totient is φ = 4958957660640.

The previous prime is 13430510331473. The next prime is 13430510331577. The reversal of 13430510331550 is 5513301503431.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10331161144 + ... + 10331162443.

It is an arithmetic number, because the mean of its divisors is an integer number (1120931054649).

Almost surely, 2^{13430510331550} is an apocalyptic number.

13430510331550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13430510331550 is an abundant number, since it is smaller than the sum of its proper divisors (13471834980026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13430510331550 is a wasteful number, since it uses less digits than its factorization.

13430510331550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20662323612 (or 20662323607 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 34.

Adding to 13430510331550 its reverse (5513301503431), we get a palindrome (18943811834981).

The spelling of 13430510331550 in words is "thirteen trillion, four hundred thirty billion, five hundred ten million, three hundred thirty-one thousand, five hundred fifty".