231212124311112 has 96 divisors (see below), whose sum is σ = 715658877710400. Its totient is φ = 66060394411392.

The previous prime is 231212124311101. The next prime is 231212124311117. The reversal of 231212124311112 is 211113421212132.

231212124311112 is a `hidden beast` number, since 2 + 3 + 1 + 2 + 1 + 212 + 431 + 1 + 1 + 12 = 666.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (231212124311117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 223753938 + ... + 224784894.

It is an arithmetic number, because the mean of its divisors is an integer number (7454779976150).

Almost surely, 2^{231212124311112} is an apocalyptic number.

It is an amenable number.

231212124311112 is an abundant number, since it is smaller than the sum of its proper divisors (484446753399288).

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

231212124311112 is a wasteful number, since it uses less digits than its factorization.

231212124311112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475955 (or 1475948 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

Adding to 231212124311112 its reverse (211113421212132), we get a palindrome (442325545523244).

The spelling of 231212124311112 in words is "two hundred thirty-one trillion, two hundred twelve billion, one hundred twenty-four million, three hundred eleven thousand, one hundred twelve".