231212121113301 has 16 divisors (see below), whose sum is σ = 311029128746688. Its totient is φ = 152774326252800.

The previous prime is 231212121113249. The next prime is 231212121113321. The reversal of 231212121113301 is 103311121212132.

It is not a de Polignac number, because 231212121113301 - 2¹⁹ = 231212120589013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231212121113321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 757656606 + ... + 757961711.

It is an arithmetic number, because the mean of its divisors is an integer number (19439320546668).

Almost surely, 2^{231212121113301} is an apocalyptic number.

It is an amenable number.

231212121113301 is a deficient number, since it is larger than the sum of its proper divisors (79817007633387).

231212121113301 is a wasteful number, since it uses less digits than its factorization.

231212121113301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515618772.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 231212121113301 its reverse (103311121212132), we get a palindrome (334523242325433).

The spelling of 231212121113301 in words is "two hundred thirty-one trillion, two hundred twelve billion, one hundred twenty-one million, one hundred thirteen thousand, three hundred one".