13142312531205 has 64 divisors (see below), whose sum is σ = 24760146216960. Its totient is φ = 5868475372800.

The previous prime is 13142312531197. The next prime is 13142312531221. The reversal of 13142312531205 is 50213521324131.

It is a happy number.

It is not a de Polignac number, because 13142312531205 - 2³ = 13142312531197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6036651 + ... + 7919960.

It is an arithmetic number, because the mean of its divisors is an integer number (386877284640).

Almost surely, 2^{13142312531205} is an apocalyptic number.

13142312531205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13142312531205 is a deficient number, since it is larger than the sum of its proper divisors (11617833685755).

13142312531205 is a wasteful number, since it uses less digits than its factorization.

13142312531205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13957082.

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 13142312531205 its reverse (50213521324131), we get a palindrome (63355833855336).

The spelling of 13142312531205 in words is "thirteen trillion, one hundred forty-two billion, three hundred twelve million, five hundred thirty-one thousand, two hundred five".