231211101030113 has 4 divisors (see below), whose sum is σ = 231211710371268. Its totient is φ = 231210491688960.

The previous prime is 231211101029999. The next prime is 231211101030211. The reversal of 231211101030113 is 311030101112132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 115442819002624 + 115768282027489 = 10744432^2 + 10759567^2 .

It is a cyclic number.

It is not a de Polignac number, because 231211101030113 - 2¹⁴ = 231211101013729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231211101030913) 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, 304101056 + ... + 304860417.

It is an arithmetic number, because the mean of its divisors is an integer number (57802927592817).

Almost surely, 2^{231211101030113} is an apocalyptic number.

It is an amenable number.

231211101030113 is a deficient number, since it is larger than the sum of its proper divisors (609341155).

231211101030113 is an equidigital number, since it uses as much as digits as its factorization.

231211101030113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609341154.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 231211101030113 its reverse (311030101112132), we get a palindrome (542241202142245).

The spelling of 231211101030113 in words is "two hundred thirty-one trillion, two hundred eleven billion, one hundred one million, thirty thousand, one hundred thirteen".