13212113301231 has 64 divisors (see below), whose sum is σ = 19597239567360. Its totient is φ = 7867261209600.

The previous prime is 13212113301197. The next prime is 13212113301293. The reversal of 13212113301231 is 13210331121231.

It is not a de Polignac number, because 13212113301231 - 2¹¹ = 13212113299183 is a prime.

It is a super-2 number, since 2×13212113301231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212113301131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 43231995 + ... + 43536531.

It is an arithmetic number, because the mean of its divisors is an integer number (306206868240).

Almost surely, 2^{13212113301231} is an apocalyptic number.

13212113301231 is a deficient number, since it is larger than the sum of its proper divisors (6385126266129).

13212113301231 is a wasteful number, since it uses less digits than its factorization.

13212113301231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304896.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 13212113301231 its reverse (13210331121231), we get a palindrome (26422444422462).

The spelling of 13212113301231 in words is "thirteen trillion, two hundred twelve billion, one hundred thirteen million, three hundred one thousand, two hundred thirty-one".